Mathematics MCQs

Page No. 81

A boats man can row in still water at speed of 7 km/hr. It takes 6 hours more to travel the same distance in upstream than in downstream if the speed of the river is 3 km/hr. what is the distance between the two destinations?


a20 km


b40 km


c30 km


d10 km


View Answer 40 km

A car can travel 360km with a ¾ full tank. How many km can it travel with a 2/3 full tank?


a400


b320


c240


d300


View Answer 320

If the ratio of the speeds of A and B to cover a distance of 200 m is 3:4, then the ratio of the time taken to cover the same distance is________?


a6:8


b3:7


c5:4


d4:3


View Answer 4:3

Yalmaz can cover a distance of 400 metres in 2 minutes. Rayan can cover 1 km in 300 seconds. Find the ratio of their speeds.


a2:5


b4:3


c1:2


d1:1


View Answer 1:1

Two trains 140 metres and 120 metres are running in the same direction with speeds 40 kmph and 60 kmph respectively. In what time will the faster train pass the slower one?


a0.60 minutes


b0.36 minutes


c0.78 minutes


d0.42 minutes


View Answer 0.78 minutes

A man rows at a speed of 6 km/hr in still water. If the time taken to row a certain distance upstream is 4 times the time taken to row the same distance downstream, what is the speed of the river?


a1.8 km/hr


b3 km/hr


c3.6 km/hr


d4 km/hr


View Answer 3.6 km/hr

A man travels a distance of 2 km by walking at a speed of 6 km/hr. He returns back at a speed of 4 km/hr. What is his average speed?


a4.5 kmph


b4.8 kmph


c5 kmph


d5.1 kmph


View Answer 4.8 kmph

In a journey of 24 miles, two thirds of the distance was travelled with a speed of 40 mph and the remaining with 60 mph. How much time did the journey take?


a14.4 minutes


b20 minutes


c28.8 minutes


d32 minutes


View Answer 32 minutes

A man takes 5 hours 45 min in walking to a certain place and riding back. He would have gained 2 hours by riding both ways. The time he would take to walk both ways is_________?


a11 hrs


b8 hrs 45 min


c7 hrs 45 min


d9 hts 20 min


View Answer 7 hrs 45 min

A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of the tour?


a70.24 km/hr


b74. 24 km/hr


c71.11 km/hr


d72.21 km/hr


View Answer 71.11 km/hr

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