Questions

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201 P6.RD.JO.21042228

Level 3 PSLE
A caterer prepares fish balls for some people attending a party. The ratio of the number of adults to the number of children attending is 2 : 5. Among the children, the ratio of the number of girls to the boys is 4 : 1. A total of 180 fish balls are prepared so that each adult gets 4 fish balls and each child gets 2.

What fraction of the people attending the party are boys?
How many children are attending the party?

4 m

Attempt

202 P6.RD.TL.16010192

Level 3
At a gathering, ¹₃ of the people are adults. The remaining group of people is divided into boys and girls in the ratio of 5 : 7. Each boy is given 2 keychains and each girl is given 5 keychains. Each accompanying adult receives 6 keychains. Given that only 368 keychains are given away to boys and adults, how many more children are there than adults?

4 m

Attempt

Fraction to units Ratio to units More than or less than Combined repeated identity Number x value Units table Units manipulation

203 P6.RA.NK.21060206

Level 3 PSLE
The pupils at a camp are divided in Group A and Group B. The ratio of the number of boys to girls in Group A is 5 : 4. The ratio of the number of boys to girls in Group B is 5 : 1. There are 2 times as many pupils in Group B as in Group A. There are 20 more boys in Group B than Group A. What is the total number of girls?

4 m

Attempt

Ratio to units More than or less than Times as many Combined repeated identity Units manipulation Units table

204 P6.DA.JC.21022201

Level 3
Some pupils took a Math exam. Their average score was 74.7 marks. One of the pupils' scores was wrongly recorded as 68 marks instead of 86 marks. As a result, the average score was calculated as 73.5 marks. How many pupils sat for the exam?

3 m

Attempt

2 Averages Average with unknown quantity Number x value Units table

205 P6.RD.JC.22031810

Level 3 PSLE
At a swimathon, each swimmer completed either a 2-km route, a 4-km route or an 5-km route. ¹₅ of the swimmers completed the 2-km route, ⁷₂₀ of the participants completed the 4-km route and the rest completed the 5-km route. For every 1 km a participant swam, $8 was donated to charity. A total of $12960 was donated to charity.

What is the ratio of the number of swimmers who completed the 2-km route to the number who completed the 4-km route to the number who completed the 5-km route?
What is the total number of swimmers at the swimathon?

4 m

Attempt

F Addition & subtraction Fraction to units Finding Ratio Length Number x value Units table

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