9th mathematics Chapter14 Ratio and Proportion
| Sr # | Questions | A | B | C | D |
|---|---|---|---|---|---|
| 1 | The ratio of the number of students who passed to the number of students who failed in an exam is 5:2. If there are 49 students in total, how many students passed? | 28 | 35 | 40 | 45 | 2 | The ratio of boys to girls in a class is 3:2. If there are 25 students in the class, how many girls are there? | 10 | 15 | 20 | 25 | 3 | The sum of three consecutive integers is 72. What is the ratio of the integers? | 3:4:5 | 4:5:6 | 5:6:7 | 6:7:8 | 4 | If 5x:8y = 10:16, what is the value of x:y? | 2:3 | 3:4 | 4:5 | 5:6 | 5 | If 2x:3y = 8:12, what is the value of x:y? | 2:3 | 3:4 | 4:5 | 5:6 | 6 | The ratio of the volumes of two cubes is 1:8. What is the ratio of their side lengths? | 1:2 | 1:4 | 1:6 | 1:√2 | 7 | If a:b = 2:3 and b:c = 3:5, what is the value of a:b:c? | 2:3:5 | 4:9:15 | 6:10:15 | 8:12:20 | 8 | If the ratio of the lengths of two sides of a rectangle is 3:4 and the perimeter is 28 cm, what is the length of the shorter side? | 6 cm | 8 cm | 10 cm | 12 cm | 9 | The ratio of the lengths of two sides of a triangle is 5:8. If the shorter side is 15 cm, what is the length of the longer side? | 20 cm | 24 cm | 30 cm | 40 cm | 10 | If x:y = 2:3 and y:z = 5:7, what is the value of x:z? | 2:5 | 4:7 | 6:9 | 8:11 | 11 | If 3x:5y = 9:15, what is the value of x:y? | 1:2 | 2:3 | 3:4 | 4:5 | 12 | If a:b = 5:7, and b:c = 2:3, what is the ratio a:c? | 5:6 | 10:21 | 5:9 | 15:21 |