The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog postings present the Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn the skills to deal with Math Modeling, Math Problem Solving and Problem Sum from Lower Primary School to Upper Primary School level. This posting is an upper primary school math question on Fraction and Problem Sum.
You can read the posting on Sarin’s family and Ramadan in Welcome page about story of Sarin’s family during Ramadan.
To read also the postings on Sarin learns the concept of Fraction (mathematics concept) to understand the concept of Fraction.
Challenge yourself with the question before look out for the given solution‼
Upper primary school mathematics question UPQ346
Sarin’s father needed to pack some canned foods into carton boxes for charity fair during Ramadan. In the morning, he packed 18 more than 1/3 of the total number of canned foods. After lunch break, he packed 22 less than 2/3 of the remaining number of canned foods. In the end, he still had 116 canned foods to pack. How many canned foods were there in all?
The canned foods left over is 116 and was 1/3 plus 22 cans of the remaining canned foods at lunch break.
The 1/3 fraction of the remaining canned foods at lunch break = 116 – 22 = 94
1 unit = 94
Remaining canned foods at lunch break = 3 × 94 = 282
The remaining canned foods were 2/3 fraction of the total canned foods less 18 cans
2 units = 282 + 18 = 300
1 unit = 150
The total number of the canned foods = 3 × 150 = 450