Sarin participates in school anniversary event part 26 (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 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 Ratio and Problem Solving.

Read the posting on Sarin participates in school anniversary event part 1 for story on school anniversary.

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

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

Upper primary school mathematics question UPQ528

Sarin and his team were given some red, yellow and blue stickers to use in the school anniversary event. His team were to use the stickers to identify the seat of the invited guests by pacing the stickers on the chairs used in anniversary dinner. The team used total 260 stickers and the ratio of number of red stickers to the number of yellow stickers to the number of blue stickers used was 9 : 4 : 7. How many more red than blue stickers did the team use? If the total number of stickers used was 3 times of the total number of stickers. How many stickers did Sarin and his team receive?


Per the given ratio, draw the math model for number of stickers used


Given Ratio: Red : Yellow : blue : total = 9 : 4 : 7 : 20

Based on the model

20 units = 260

1 unit = 13 stickers

The number of red stickers more than the number of blue stickers = 2 × 13 = 26

The total number of used stickers = 260

The total number of stickers was 3 times the used stickers


            The number of stickers that Sarin and the team received = 3 × 260 = 780                     

More Questions on Problem Sum. Click here….

More Questions on Ratio. Click here…..



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