Category Archives: Rate of change

Sarin’s family took a train part 12 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog presents the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids will able to acquire knowledge of dealing with the Math Modeling, the Math Problem Solving and the Problem Sum from Lower Primary School to Upper Primary School level after read the blog postings. This posting is an upper primary school math question on Fraction, Ratio and Speed.

Read the posting on Sarin’s family took a train about Sarin’s family had their train ride from Singapore Tanjong Pagar Train Station.

Read the posting on Sarin’s family in Kluang about Sarin’s family venture in Kluang.

Read also the posting on Sarin learns rate of change in school (Math Concept) to learn about concept of Speed.

You can read the posting on Sarin learns concept of ratio in school to understand the concept of Ratio.

Read also the posting on Sarin learns the concept of Fraction (mathematics concept) to understand the concept of Fraction.

Challenge yourself with the question before look for the given solution‼!

Upper primary school mathematics question UPQ558

Sarin’s family took an express train left Singapore Woodlands Station for Kluang Station. At the same time, a normal train left Kluang Station for Singapore Woodlands Station. The average speed of the express train was 90 km/h more than that of the normal train. The express train and normal train took 4 hours and 10 hours to reach their destinations respectively, find the average speed of the express train and the distance of the two stations.

…Click here to read the solution…

Sarin’s family took a train part 11 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog presents the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids will able to acquire knowledge of dealing with the Math Modeling, the Math Problem Solving and the Problem Sum from Lower Primary School to Upper Primary School level after read the blog postings. This posting is an upper primary school math question on Chart and Average speed.

Read the posting on Sarin’s family took a train about Sarin’s family had their train ride from Singapore Tanjong Pagar Train Station.

Read the posting on Sarin’s family in Kluang about Sarin’s family venture in Kluang.

Read the posting on Sarin learns Average Number, Percentage and Charting in school (Math Concept) to understand the concept of line Chart.

Read also the posting on Sarin learns rate of change in school (Math Concept) to learn about concept of Speed.

Challenge yourself with the question before look for the given solution‼!

Upper primary school mathematics question UPQ527

Sarin’s family took a train to Kluang during the school holiday. The family travelled 290km on the train to reach Kluang.

The line chart shows how far Sarin family travelled to Kluang. What was the average speed of the train for the first 3 hours?

UPQ527-1

 

 

…Click here to read the solution…

Sarin’s father crossing the Causeway part 14 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings on Solving Singapore Primary School Mathematics. The blog presenting the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn to deal with the Math Modeling, the Math Problem Solving and the Problem Sum from Lower Primary School to Upper Primary School level after reading the blog postings. This posting is an upper primary school math question on Fraction and Speed.

Read the posting on Sarin’s father visits his friend in JB town to know about JB town as well as read the posting on Sarin’s father crossing the Causeway to know about the Johor-Singapore Causeway.

You can read the posting on Sarin learns the concept of Fraction (mathematics concept) to understand the concept of Fraction.

Read also the posting on Sarin learns rate of change in school (Math Concept) to learn about concept of speed.

Challenge yourself with the question before look for the given solution‼!

Upper primary school mathematics question UPQ515

Sarin’s father drove from Simei Town to JB Town. A taxi also left Simei Town at the same time and travelled along the same route to JB Town. Sarin’s father travelled 30km/h faster than the Taxi. After 4 hours, Sarin’s father still had 40 km to cover while the Taxi had covered only 3/5 of the journey. What was the Taxi’s speed?

 

…Click here to read the solution…

Sarin learns Perimeter, Area and Volume in school part 103 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog presents the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can acquire the skill of dealing with the Math Modeling, the Math Problem Solving and the Problem Sum from Lower Primary School to Upper Primary School level after reading the blog postings. This posting is an upper primary school math question on VolumeShapes and Rate of Change.

You can read posting Sarin learns Perimeter, Area and Volume in school(Math Concept) to learn the concept of area.

Read also the posting on Sarin learns Shapes and Solids in school (Math Concept) to know about shapes.

Read the posting on Sarin learns rate of change in school (Math Concept) to learn about concept of flow rate.

Challenge yourself with the question before look out for the given solution‼!

Upper primary school mathematics question UPQ466

Sarin has a fish tank with the following dimensions. He filled the fish fish tank with sand as the figure shown.

a. Find the volume of water in the fish tank when it is filled to the brim.

b. Water is pumped out of the tank at a rate of 0.17 cm3/s. find the amount of time it will take to completely drain the fish tank, rounded to the nearest second.

UPQ466-1

 

…Click here to read the solution…

Sarin’s father visits his friend in JB town part 5 (Math Question)

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The blog postings are about the Singapore Math. The readers can know as well as learn from the postings about Singapore Primary School level mathematics. The blog presents the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can aquire the skills of dealing with the Math Modeling, the Math Problem Solving and the Problem Sum from Lower Primary School to Upper Primary School level. This posting is an Upper primary school math question on Speed and Problem sum.

Read the posting on Sarin’s father visits his friend in JB town to know about JB town as well as reading posting on Sarin’s father crossing the Causeway to learn about the causeway between Singapore and Malaysia.

Read also the posting on Sarin learns rate of change in school (Math Concept) to learn about concept of speed.

Challenge yourself with the question before look for the given solution‼!

Upper primary school mathematics question UPQ408

At 930 a.m., Sarin’s father drove a car at a constant speed of 60 km/h from Simei town to JB town. At 11 a.m., a lorry started from JB town and travelled towards Simei town. The speed of the lorry remained the same until it passed Sarin’s father car at 12.30 p.m. The lorry passed the car at midpoint between Simei town and JB town and decreased its speed by 20 km/h. It travelled at the new speed for the rest of the journey. What time did the lorry reach Simei town?

…Click here to see the solution…

Sarin’s father crossing the Causeway part 12 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings on Solving Singapore Primary School Mathematics. The blog presenting Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn to deal with Math Modeling, Problem Sum from Lower Primary School to Upper Primary School level. This posting is a upper primary school math question on Speed.

Read the posting on Sarin’s father visits his friend in JB town to know about JB town as well as read the posting on Sarin’s father crossing the Causeway to know about the Johor-Singapore Causeway.

Read also the posting on Sarin learns rate of change in school (Math Concept) to learn about concept of speed.

Challenge yourself with the question before look for the given solution‼!

Upper primary school mathematics question UPQ352

Sarin’s father drove a car from Simei Town and travelled towards JB Town at an average speed of 90 km/h to meet his friend. At the same time, a car left JB Town and travelled towards Simei Town at an average speed of 60 km/h. If the distance between Simei Town and JB Town was 600 km, after how long would the two vehicles meet?

…Click here to read the solution…

Sarin learns rate of change in school Part 7 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog presenting the Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn the skills of dealing with Math Modeling, Math Problem Solving and Problem Sum from Lower Primary School to Upper Primary School level after reading the postings. This posting is an upper primary school math question on Volume and Flow Rate.

Read the posting on Sarin learns rate of change in school (Math Concept) to learn about concept of rate of change.

You can read the posting on Sarin learns Perimeter, Area and Volume in school(Math Concept) to learn the concept of volume.

Challenge yourself with the question before look for the given solution‼!

Upper primary school mathematics question UPQ351

Tank X is filled with water to a height of 16 cm. The water in Tank X is poured into 2 rectangular tanks, Tank Y and Tank Z, such that the heights of water in the 3 tanks are equal. Find the volume of water poured out of Tank X.

UPQ351-1

 

 

 

 

 

…Click here to read the solution…

Sarin learns rate of change in school Part 6 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog presenting the Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn the skills of dealing with Math Modeling, Math Problem Solving and Problem Sum from Lower Primary School to Upper Primary School level after reading the postings. This posting is an upper primary school math question on Volume, Flow Rate(Speed), Fraction and Problem Sum.

Read the posting on Sarin learns rate of change in school (Math Concept) to learn about concept of rate of change.

You can read the posting on Sarin learns Perimeter, Area and Volume in school(Math Concept) to learn the concept of volume.

To read also the posting on Sarin learns the concept of Fraction (mathematics concept) to understand the concept of Fraction.

Challenge yourself with the question before look for the given solution‼!

Upper primary school mathematics question UPQ306

A tank, 25 cm by 12 cm by 20cm, was 1/5 filled with water at first. Tap A, which could fill the tank completely in 2 hours, was turned on first. Tap B, which could fill the tank completely in 6 hours, was turned on 20 minutes after Tap A was turned on.

(a) How much water was in the tank after 20 minutes?

(b) How long did it take to fill the rest of the tank completely with water?

 

 

 

 

…Click here to read the solution…

Sarin’s father visits his friend in JB town part 4 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog presenting the Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can aquire the skills of dealing with Math Modeling, Problem Sum from Lower Primary School to Upper Primary School level. This posting is an upper primary school math question on Fraction, Speed and Problem sum.

Read the posting on Sarin’s father visits his friend in JB town to know about JB town as well as reading posting on Sarin’s father crossing the Causeway to learn about the causeway between Singapore and Malaysia.

Read also the posting on Sarin learns rate of change in school (Math Concept) to learn about concept of speed and read the posting on Sarin learns the concept of Fraction (mathematics concept) to understand Fraction and Portion.

Challenge yourself with the question before look for the given solution‼!

Upper primary school mathematics question UPQ305

Sarin’s father drove from Simei Town to JB Town. After completing 2/7 of the journey in 1/2 hour, he passed a van travelling at a constant speed of 70 km/h in the same direction. 3 hours later, Sarin’s father reached JB Town but the van was still 65km away from JB Town.

(a) Find the average speed of Sarin’s father.

(b) If the van left Simei Town at 08 10, at what time would it arrive at JB Town? …Click here to see the solution…

Sarin’s father crossing the Causeway part 11 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings on Solving Singapore Primary School Mathematics. The blog presenting Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn to deal with Math Modeling, Problem Sum from Lower Primary School to Upper Primary School level after reading the blog postings. This posting is an upper primary school math question on  Speed.

Read the posting on Sarin’s father visits his friend in JB town to know about JB town as well as read the posting on Sarin’s father crossing the Causeway to know about the Johor-Singapore Causeway.

Read also the posting on Sarin learns rate of change in school (Math Concept) to learn about concept of speed.

Challenge yourself with the question before look for the given solution‼!

Upper primary school mathematics question UPQ283

The travel distance from Simei Town to JB Town was 375 km apart. Sarin’s father left Simei Town for JB Town to visit his friend at 10 am traveling at an average speed of 75 km/h. A taxi left Simei Town some time later than Sarin’s father and overtook him at 12 noon. The taxi travelled at an average speed of 90 km/h.

(a) At what time did the Taxi leave Simei Town?

(b) How much later did Sarin’s father arrive in JB Town than the taxi?

…Click here to read the solution…