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Question 1
In a pedal rikshaw the rear axle is connected to a chain and the axle is connected to the wheels. The chain is wound around the axle gear which is 3.5 cm in radius. The wheel attached to the rear axle has a radius of 21 cm. If the chain moves by a length of 22cm cm, then how much distance has the wheel covered?
Question 2
In a 200 m sprint race, Amit can beat Rajiv by 20 m and can beat Satyendra by 30 m. If Satyendra and Rajiv participate in a 100m race, how much head start can Rajiv give to Satyendra?
Question 3
Ranu daily goes to office which is 30 km from her home by bus. One day after 10 km she stuck in the traffic for 20 minutes so from there she books an auto and reaches office at right time. If the speed of the auto is 40 kmph then find the speed of the bus.
Question 4
An amateur fire fighter tries to climb on a rope in his training. In first minute, he climbs 12 metre but next minute he slides down 5 metre. If the vertical length of the rope is 63 metres. Then in how much time he will reach at the top?
Question 5
A train P crosses a platform of length 120 m in 15 seconds. Another train of length 100 m moving in the same direction with 104 m/s speed crosses the train P in 20 seconds. Find the length of train P. Given that speed of Train P<104 m/s.
Question 6
A train can run at a speed of 80 kmph. But due to stoppage at different stations its average speed reduces to 60 kmph. For how many minutes, does the train stop per hour?
Question 7
Two planes 600km apart are heading towards each other. They are going at 800kmph and 1000kmph. How long will it take the planes to cross other?
Question 8
A man goes to his office on foot. He is late by 12 mins if he reduces his speed by a fraction ‘a’ but he reaches 8 min early if he increases his speed by the same fraction ‘a’. Find the value of ‘a’.
Question 9
A train 110 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
Question 10
A car covers a certain distance in 25 hours. If it reduces the speed by 1/5th, the car covers 200 km less in the same time period. The original speed of the car is how much?
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Jan 17SSC & Railway
