1. 9
2. 15
3. 20
4. 7 : 9
5. 63,35
6. £900
7. 24
8. 300
9. 24kg
10. 21cm,35cm
11. 320km
12. 45°
13. 5 : 8
14. 2000km
RATIO
RATIO AND PROPORTION
– ANSWER KEY
15. 18cm, 24cm, 30cm not or reproduced. Those
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RATIO AND PROPORTION
1. What is the value of ‘x’ if 3 : 8 = x : 24?
– SOLUTIONS is the value if = :
2. Find the value of ‘y’ if 12 : y = 20 :
the value ‘y’ : y 25?
3. Find the value of ‘x’ if 8 : x = x : 50?
the value ‘x’ if : x x
There a class. of of to number
4. There are 35 boys and 45 girls in a class. What is the ratio of number of boys to number of girls?
5. Find two numbers whose sum is 98 which are in th
two sum is 98 which the ratio 9 : 5?
6. Aaron earns £300 in 10 days. How much he will earn in 30 days? not or reproduced. Those RATIO
300 in will earn in 30 days?
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7. The cost of 4 dozens of bananas is
cost 4 dozens bananas is £180. How many bananas can be purchased in
number of to girls are how many boys there in
8. In a college the ratio of number of boys to number of girls is 10 : 11. If there are 330 girls, how many boys are there in the college?
9. Weight of 72 books is 144kg. What is the weight of 12 such books?
What is weight of 12 books?
10. A line segment 56cm is to be divid part?
A segment to be divided into 2 parts in the ratio 3 : 5. Find the length of each
11. A car travels 240km in 15Ꙇ not or reproduced. Those
Ꙇ of petrol. How much distance will it travel in 20
£90? ere Ꙇ of petrol?
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12. The earth rotates 360° about its axis in about 24 hours. 3 hour?
13. The number of milk teeth in human beings is 20 and the number of permanent teeth is 32. Find the ratio of number of milk teeth to number of permanent teeth?
Answer………………………….. in beings permanent the ratio of of milk to number
14. An airplane covers a distance of 6000km in 6 hours. How much distance will it cover in 2 hours?
15. The sides of a triangle are in the ratio 3 : 4 : 5. If the perimeter of the triangle is 72cm, find the length of its sides? not or reproduced. Those its axis about By how much degree will it rotate in
Answer………………………….. airplane a 6000km in hours.
Answer………………………….. of a are in 3 5. If perimeter
Answer…………………………..
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