Q1. Two rifles are fired from the same place at a difference of 11 min 45 seconds. But a man who is coming towards the place in a train hears the second sound after 11 min. Find the speed of the train (assuming speed of sound = 330 m/s )
(a) 72 km/hr
(b) 36 km/hr
(c) 81 km/hr
(d) 108 km/hr
Q2. A runs twice as fast as B and B runs thrice as fast as C. The distance covered by C in 72 minutes, will be covered by A in:
(a) 18 min
(b) 24 min
(c) 16 min
(d) 12 min
Q3. A car completes a journey in 10 hours, if it covers half of the journey at 40 km/hr and the remaining at 60 km/hr. The distance covered by car is:
(a) 400 km
(b) 480 km
(c) 380 km
(d) 300 km
Q4. A bus meets with an auto at 10:00 am while going the same way in the same direction towards Haridwar. The Bus reach at Haridwar at 12:30 p.m. and take 1 hour rest at there. Bus return on the same way and meet with the same auto half an hour later. At what time the auto will reach at Haridwar?
(a) 3 pm
(b) 4 pm
(c) 3:30 pm
(d) 5 pm
Q5. In covering a distance of 30 km, Arun takes 2 hours more than Sumit. If Arun doubles his speed, then he would take 1 hour less than Sumit. Arun’s speed in (km/hr) is:
(a) 5
(b) 6.25
(c) 6
(d) 7.5
Q6. A man can reach a certain place in 30 hours. If he reduces his speed by 1/15th, he goes 10 km less in that time. Find his initial speed per hour.
(a) 6 km/hr
(b) 5 (1/2) km/hr
(c) 4 km/hr
(d) 5 km/hr
Q7. The length of the minutes hand of a clock is 8cm. Find the distance travelled by its outer end in 15 minutes.
(a) 4 πcm
(b) 8 πcm
(c) 12 πcm
(d) 16 πcm
Solutions:
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