Primary 5, Mathematics, Worksheet 9

Question: 36: 12 = _______ : 1

Question: Express 45 minutes as a ratio of 3 hours. 

Question: Simplify the ratio 24: 30: 56 

Question: Express 25 cents as a ratio of $5.20 in its lowest terms. 

Question: A papaya cost 2/5 as much as a bunch of rambutans. Find the ratio of the cost of the papaya to the cost of the rambutans.

Question: Bob and Yeo share $ 560 in the ratio 2:3. How much more money does Yeo receive than Bob? 

Question: There are 2100 students in a school. 1250 are girls and the rest are boys. Find the ratio of the number of girls to the number of boys at the zoo. 

Question: The ratio of the number of pears to the number of pineapples is 4:9. There are 45 more pineapples than pears. How many pineapples and pears are there altogether? 

Question: The ratio of Anthony’s age to his mother’s age is 1: 4. If Anthony is 9 years old, in how many years’ time will the ratio of Anthony’s age to his mother’s age be 1:2? 

Question: William, Felicia and Ben share some stamps in the ratio 2:5:7. Felicia receives 27 more stamps than William. How many stamps did Ben receive? 

Question: The ratio of the height of Wang’s height to the height of Alice is 9:5. Alice is 60 cm shorter than Wang. Find the total mass of Wang and Alice. 

Question: Amy made fruit punch by mixing fruit syrup and water in the ratio 3:8. If she uses 400 litres more water than syrup, how much syrup did she use? 

Question: The ratio of the length of a bolt of silk to that of a bolt wool is 8:3. The bolt of silk is 56 cm long. How much longer is the bolt of silk than the bolt of wool? 

Question: Pauline gave 21 stickers to Leslie and 30 stickers to Darren. Express the number of stickers Leslie received as a ratio to the total number of stickers both of them received? 

Question: 15. Louisa baked 35 muffins and Erica baked 28. Express as a ratio the number of muffins Louisa baked to the number of muffins Erica baked. 

Question: The ratio of En Chia’s allowance to Yu Long’s allowance to Bob’s allowance was 3:5:10. When Bob gave $56 away to be shared unequally between En Chia and Yu Long, he found that the 3 of them had the same amount of savings. How much did Yu Long have left? 

Question: A piece of ribbon was cut in to 2 parts in the ratio 7:8. The shorter part was further cut into two pieces in the ratio 5:2 with the longer piece being 15.5 m long. How long was the original piece of ribbon? 

Question: Tom, Dick and Harry sold some tickets for a rock concert. Tom sold 14 of the total number of tickets. Dick and Harry sold the remaining tickets in the ratio 4:7. If Harry sold 21 more tickets than Dick, how many tickets did the three boys sell altogether? 

Question: The ratio of John’s money to Leslie’s Money is 2:5. The ratio of Leslie’s money to Jessica’s money is 3:8. If John and Jessica have $322, how much does Leslie have? 

Question: Bernard gave away 180 beads while Su gave away 120 beads. The ratio of Bernard’s number of beads left to Su’s number of beads left was 9:5. If Bernard had 288 beads at first, how many beads did Su have at first?