Sarin’s family and The Great Singapore Sale Part 16 (Math Question)


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 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 Fraction and Problem Sum.

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

Read the posting on Sarin’s family and The Great Singapore Sale in the Welcome category for the story.

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

Upper primary school mathematics question UPQ547

During the Great Singapore Sale, Sarin and Fatimah spent a total of $1000. 3/5 of what Sarin spent was equal to 1/5 of what Fatimah spent. Who spent more and how much more did had spend?


The physical amount that spent by them are equal.

The model


From the model,

Fatimah spent more than Sarin.

20 units = $1000

1 unit = $50

The amount that Fatimah spend more than Sarin

= 10× 50 = $500

Alternative solution:

3/5 spending of sarin is  1/5 spending of Fatimah


From the table,

Fatimah spent more than Sarin

The amount more that Fatimah spent = 15 – 5 = 10 units

20 units = $1000

The amount she spent more = 1000 ÷ 2 = $500

More Questions on Fraction. Click here…..

More Questions on Problem solving. Click here……


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