P6 Problem Sums Dec '08

1. Ben bought 3 times as many toy cars as game cartridges. He spent $1615 altogether. A game cartridge costs $15 more than the total cost of game cartridges. Find the cost of a game cartridge.

2. Mrs Lin bought 12 pears and 4 apples. Mrs Wang bought 12 apples and 4 pears. Mrs Wang paid $1.60 less than Mrs Lin. If an apple costs 35 cents, how much did a pear cost?

3. Limei went to the market with $48. This amount of money was just enough to buy 4kg of beef and 3 kg of mutton. Limei, however, bought 3kg of beef and 4 kg of mutton and had $1.50 left. Find the cost of 1kg of mutton.

4. Mr Fu paid $404 for some jackets and T-shirts. A jacket cost $20 and a T-shirt was $8 cheaper than the jacket. If he bought 7 more T-shirts than jackets, how many jackets and how many T-shirts did he buy?

5. On tree-planting day, 40 pupils planted some trees. Each boy planted 3 trees and each girl planted 2 trees. The boys planted 30 more trees than the girls. How many boys were there?

6. Box A contains 50-cent coins and Box B contains 20-cent coins. There are 19 more coins in Box B than in Box A. But the amount of money in Box A is $1.30 more than the amount of money in Box B. How much money was there in Box A?

7. A big tank had 890 litres of water. A small tank had 170 litres of water. When an equal amount of money was added to both tanks, the big tank had 3 times as much water as the small tank. How much water was added to each tank?

8. Ann, Ben and Mike spent $566. Ann spent $176 more than Ben and Mike spent $60 less than Ben. How much Ben spend?

9. Jane is thinking of a number. When it is divided by 6, the quotient is a whole number. When it is divided by 9, the quotient is also a whole number. What is the number?

10. Susan wants to arrange her stamps in columns on a card. If she puts 8 stamps in each column, she will have 2 stamps left. If she puts 9 stamps in each column, she will be short of 4 stamps. How many stamps does she have?