# Sarin participates in school anniversary event part 9 (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. You or your kids can learn dealing with Math modeling, Problem Sum from Lower Primary School to Upper Primary School level in Singapore school. This posting is a primary school math question on Fraction, Chart reading 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 Average Number, Percentage and and Charting in school (Math Concept) to understand the concept of Percentage.

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

Upper primary school mathematics question UPQ163

After the school anniversary events, a survey on the liking of the individual programs or items put up was conducted with 720 pupils. The findings are presented in the pie chart below.

(a)        What fraction of the pupils like Funfair as an item? (Give your answer in its simplest form)

(b)        How many more pupils like Dance performance than autography event?(a) How many pens were there in the box at first?

Solution:

From the Pie-chart

The fraction of pupils like Dinner is = 1/4

The fraction of pupils like Funfair = 1 – 1/8 – 1/4 – 1/3 = 7/24

The fraction of pupils like Dance than Autography event = 1/3 – 1/8 = 5/24

The number of pupils like dogs than cats = 720 × 5/24 = 150