# Sarin and his mother 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, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn the skills 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 Average Number and Problem Sum.

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

Challenge yourself with the question before looking out for the given solution‼

Upper primary school mathematics question UPQ469

The average age of Sarin and his mother was 22 years old six years ago. Given that he is now one third of his mother’s age, how old is Sarin now?

# Sarin and his mother Part 3 (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, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn the skills 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 Algebra and Problem Sum.

Read the posting on Sarin learns Symbol, Algebra and Equation in school (Math Concept) to understand the concept of Algebra.

Challenge yourself with the question before looking out for the given solution‼

Upper primary school mathematics question UPQ413

Sarin is 5 years old. His mother is 33 years old. In how many years’ time will his mother be thrice as old as he?

# A family in Singapore part 39 (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 will able to acquire knowledge of dealing with Math Modeling, Math Problem Solving and 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 Average Number and Problem Sum.

You should read the posting on Sarin learns Average Number, Percentage and Charting in school (Math Concept) to understand the concept of Average Number.

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

Upper primary school mathematics question UPQ345

The average mass of Hairu and Sarin is 80 kg. The average mass of Fatimah and Sarin is 69 kg. The average mass of the 3 of them is 72 kg. Find the mass of Sarin.

# A family in Singapore part 38 (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 will able to acquire knowledge of dealing with Math Modeling, Math Problem Solving and 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 Average Number and Problem Sum.

You should read the posting on Sarin learns Average Number, Percentage and Charting in school (Math Concept) to understand the concept of Average Number.

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

Upper primary school mathematics question UPQ340

The average mass of Sarin, Hairu and Fatimah was 48 kg. Sarin weighed 58 kg. Hairu was 8 kg lighter than Sarin. What was Fatimah’s mass?

# A family in Singapore part 36 (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 will able to acquire knowledge of dealing with Math Modeling, Math Problem Solving and 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 Ratio, Gap Concept and Problem Sum.

Read the posting on Sarin learns concept of ratio in school to understand the concept of Ratio.

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

Upper primary school mathematics question UPQ331

Sarin’s father had given Sarin and Hairu an equal amount of money. Sarin spent \$20 each day and Hairu spent \$25 each day. When Sarin had \$157 left, Hairu had \$82 left. How much did Hairu receive from his father?

# A family in Singapore part 34 (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 will able to acquire knowledge of dealing with Math Modeling, Math Problem Solving and 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 Ratio,  Fraction and Problem Sum.

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 UPQ325

Sarin’s father is 30 years older than he is. In 9 years’ time, Sarin will be 1/3 of his father’s age. What is the ratio of Sarin’s present age to his father’s present age?

# A family in Singapore part 33 (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 will able to acquire knowledge of dealing with Math Modeling, Math Problem Solving and 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 Problem Sum.

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 UPQ321

Sarin and Hairu had some money. Sarin’s money was \$80 more than Hairu. After Sarin spent 1/4 of his money and Hairu spent 1/3 of his money, Sarin still had \$83 more than Hairu. How much money did Hairu have at first?

# A family in Singapore part 30 (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 will able to acquire knowledge of dealing with Math Modeling, Math Problem Solving and 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 Problem Sum.

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 UPQ320

Fatimah’s age is 2/7 of her father’s. Her father will be 47 years old in 5 year’s time. In how many years’ time will Fatimah’s age be 5/11 of her father’s?

# A family in Singapore part 27 (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 will able to acquire knowledge of dealing with Math Modeling, Math Problem Solving and 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 Problem Sum.

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 UPQ314

Hairu is 1/5 of his father’s age 6 years ago. Their total age now is 60. How old will Hairu’s father be in 2 years’ time?

# A family in Singapore part 26 (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 that teaches in Singapore Primary Schools. You or your kids can learn the skills of dealing with Math Modeling, Math Problem Solving, 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, Ratio, and Problem Sum.

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

Should 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 UPQ299

At first 1/5 of Hairu’s money was the same as 1/6 of Sarin’s money. Sarin’s father gave him \$48 later, while Hairu spent \$120. In the end, Sarin had 1 1/2 times as much money as Hairu.

(a) How much money did Hairu have at first?

(b) How much money did Sarin have in the end?