**1. A dog takes 4 leaps for every 5 leaps of a hare but 3 leaps of a dog are equal to 4 leaps of the hare. Compare their speeds in terms of ratio of their speed.**

(A) Dog’s
speed : hare’s speed = 15 : 16

(B) Dog’s speed : hare’s speed = 16 : 15

(C) Dog’s speed : hare’s speed = 3 : 5

(D) Dog’s speed : hare’s speed = 5 : 3

(B) Dog’s speed : hare’s speed = 16 : 15

(C) Dog’s speed : hare’s speed = 3 : 5

(D) Dog’s speed : hare’s speed = 5 : 3

**2. The ratio of the speeds of two trains is 7 : 8. If the second train runs 400 kms in 4 hours, then the speed of the first train is—**

(A) 70 km/hr

(B) 75 km/hr

(C) 84 km/hr

(D) 87 km/hr

**3. In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, the present age of B is—**

(A)29years

(B) 19 years

(C) 49 years

(D) 39 years

4. Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternately, the tank will be full in—

4. Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternately, the tank will be full in—

(A) 6 hours

(B) 6 2/3 hours

(C) 7 hours

(D) 7 ½ hours

**5. The present ages of three persons are in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56. Find their present ages (in years)—**

(A) 20, 35, 45

(B) 8, 20, 28

(C) 16, 28, 36

(D) 20, 36, 46

**Answers**

**1-B**

2-D

3-D

4-C

5-C

2-D

3-D

4-C

5-C

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