Questions

From Worst to Best

11 P6.RD.TL.16010110

Level 3
The ratio of Henry's total points to that of Vincent's in a mock test was 6 : 7. In the next mock test, Henry's points increased by 70%. By what percentage must Vincent's points be increased if their total points were to be the same? Round off the answer to the nearest whole number.

3 m

Attempt

W Round off Ratio to units Finding percent Percent change by Percent to units Equal stage after All change Units table Units manipulation

12 P6.RD.TL.16010171

Level 3
Three women, Mrs Zhang, Mrs Lin and Mrs Yap went on a shopping spree. 30% of Mrs Zhang's spending is equal to ¹₅ of Mrs Lin's spending. Mrs Yap's spending is 40% more than Mrs Lin's. If Mrs Lin spends another $804, she will spend the same amount of money as Mrs Yap.

Find the ratio of Mrs Zhang's spending to Mrs Lin's to Mrs Yap's.
How much did Mrs Zhang spend?

4 m

Video Attempt

Fraction to units Finding ratio R Simplest form Percent to units Percent of different bases More than or less than Equal stage after Repeated identity Common numerator Units table

13 P6.FR.JO.21042214

Level 3 PSLE
Rael, Sam and Fred had 180 stickers altogether. Rael gave ³₁₀ of his stickers to Sam and ¹₅ of his stickers to Fred. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Sam and Fed at first?

3 m

Attempt

Fraction of a set F Addition & subtraction Internal transfer unchanged total Equal stage after Units table

14 P6.RD.TL.16010198

Level 3
Two hours ago, a stallholder started his day with some durians and apples in the ratio of 5 : 2. There were 100 apples. Some of the durians were bought by Mrs Olivia. As a result, the number of durians became ³₅ of the apples.

How many durians did the stallholder have left?
How many durians must the stallholder buy in order to have an equal number of durians and apples?

4 m

Attempt

Fraction to units Ratio to units Equal stage after Unchanged quantity Units table

15 P6.RD.JC.19082902

Level 3
Fabian, Gilbert and Henry had some marbles in the ratio of 2 : 3 : 5. Henry gave 40% of his marbles to Fabian and Gilbert. As a result, Fabian had the same number of marbles as Gilbert and Henry had 36 fewer marbles than Fabian.