7Time, Speed and Distance

Q1.
A bus is going at a speed of 54 km/hr. In m/sec its speed is:
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Q2.
A car is going at a speed of 15 m/s. Its speed in km/hr is:
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Q3.
A man riding his bicycle covers 150 m in 25 sec. What is his speed in km/hr?
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Q4.
The speeds of X and Y are in the ratio 3:4. X takes 20 minutes more than Y to reach a destination. In what time does X reach the destination?
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Q5.
P is twice as fast as Q and Q is thrice as fast as R. The journey covered by R in 42 minutes will be covered by P in:
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Q6.
A man goes from X to Y at a uniform speed of 12 km/hr and returns with a uniform speed of 4 km/hr. His average speed for the whole journey is:
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Q7.
Anita covers half of her journey at 6 km/hr and remaining half at 3 km/hr. Her average speed is:
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Q8.
A biker rides 24 km at 16 km/hr and further 36 km at 15 km/hr. His average speed for the whole journey is:
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Q9.
Pratibha covers 24 km at the speed of 8 km/hr, 18 km at the speed of 9 km/hr and 12 km at the speed of 3 km/hr. What is her average speed in covering the whole distance?
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Q10.
The distance between two places Q and R is 15 km. Hari walks from Q to R at 4 km/hr and Shyam walks from R to Q at 6 km/hr. Both start at 7 am. At what time will they meet?
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Q11.
Rabindra covers three stretches of 24 km each at 6 km/hr, 8 km/hr and 12 km/hr respectively. His average speed over the whole journey is:
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Q12.
Durga covers a certain distance by car. If she covers 30% of the distance at 20 km/hr, 60% of the distance at 40 km/hr and the remaining distance at 10 km/hr. Find her average speed over the whole distance.
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Q13.
Sarita covers a certain distance in 2 hours 45 minutes when she walks at the rate of 4 km/hr. How much time will she take to cover the same distance if she returns at the speed of 16.5 km/hr?
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Q14.
Excluding stoppages, the speed of a bus is 54 km/hr and including stoppages, it is 45 km/hr. For how many minutes does the bus stop per hour?
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Q15.
Ram walks from his house to school at the rate of 3 km/hr, he reaches 15 minutes late. If he walks at 4 km/hr he reaches 15 minutes earlier than the scheduled time. The distance between his house and school is:
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Q16.
If a car runs at 40 km/hr, it reaches its destination late by 11 minutes. But, if it runs at 50 km/hr, it is late by 5 minutes only. The correct time for the train to complete its journey is:
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Q17.
Walking with 3/5 of his usual speed a man covers a certain distance in 2 hours more than the time taken by him to cover this distance at usual speed. The time taken by him to cover this distance with usual speed is:
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Q18.
A train covered a certain distance at a uniform speed. If the train had been 6 km/hr faster, it would have taken 4 hours less than the scheduled time. And, if the train were slower by 6 km/hr, it would have taken 6 hours more than the scheduled time. The length of the journey is:
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Q19.
A bus leaves Butwal at 6 am and reaches Naranghat at 10 am. Another bus leaves Naranghat at 8 am and reaches Butwal at 11:30 am. At what time do the two buses cross one another?
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Q20.
Lovely Express left Syangja for Butwal at 14:30 hours, travelling at a speed of 60 km/hr and Pokharali Express left Syangja for Butwal on the same day at 16:30 hours, travelling at speed of 80 km/hr. How far away from Syangja will the two buses meet?
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Q21.
A thief steals a car at 1:30 pm and drives it at 60 km/hr. The theft is discovered at 2 pm and the owner sets off in another car at 80 km/hr. At what time will he overtake the thief?
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Q22.
A constable is 114 m behind a thief. The constable runs 21 m and the thief 15 m in a minute. In what time will the constable catch the thief?
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Q23.
A boy is running at a speed of p km/hr to cover 1 km. Due to slippery road, his speed is reduced by q km/hr. If he takes r hours to cover this distance, which of the following is true?
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Q24.
The ratio of the speed of three cars is 2:3:4. What is the ratio of the times taken by them in covering the same distance?
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Q25.
A man walking at the rate of 3 km/hr crosses a square field diagonally in 2 minutes. The area of the field is:
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Q26.
A car completes a certain journey in 8 hours. It covers half the distance at 40 km/hr and the rest at 60 km/hr. The length of the journey is:
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Q27.
A takes 2 hours more than B to walk d km. If A doubles his speed then he can make it in 1 hour less than B. How much time does B require for walking d km?
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