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.
Level 2 PSLE
Lina and Juno folded paper cranes over two days. On Monday, Lina folded 13 paper cranes more than Juno. On Tuesday, Lina folded another 15 paper cranes and Juno folded another 8. At the end of the two days, Lina made 47 of the total number of cranes. What was the number of paper cranes that Juno folded?
Level 3 PSLE
On Saturday, the number of adults to boys to girls visiting a zoo was 3 : 6 : 5. On Sunday, the number of adults visiting the zoo remained the same. However, the number of boys increased by 50% and the number of girls decreased by 20%.
What was the ratio of the number of adults to boys to girls visiting the zoo on Sunday?
On Saturday, 572 boys and girls visited the zoo. What was the total number of visitors at the zoo on Sunday?
Level 3
In a jar, the ratio of the number of yellow balls to the number of purple balls was 1 : 3. Each time, 5 yellow and 7 purple balls were taken out of the jar. A while later, only 120 purple balls were left in the jar. What was the total number of balls in the jar at first?
Level 3
The ratio of the boys to the girls in school was 5 : 2. After 6 boys went home and 8 new girls came, there were 7 more boys than girls in the end. Find the number of children in the school at first.
