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EXAM Math Questions and Answer Page 2873

(#M40020580) EXAM QUESTION time,speed Keep an EYE

Walking at 3/4 of his usual place, a man reaches his office 20 minute late. Find his usual time?

A.

2 hr

B.

1 hr

C.

3 hr

D.

1.5 hr

Asked In exam MAN (12 years ago)

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(#M40020578) EXAM QUESTION time,speed Keep an EYE

A and B start running simultaneously. A runs from point P to point Q and B from point Q to point P. A's speed is 6/5 of B's speed. After crossing B, if A takes 5/2 hr to reach Q, how much time does B take to reach P after crossing A?

A.

3 hr 6 min

B.

3 hr 16 min

C.

3 hr 26 min

D.

3 hr 36 min

Asked In exam MAN (12 years ago)

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(#M40020577) EXAM QUESTION time,speed Keep an EYE

A boat covers a distance of 30km downstream in 2 hour while it takes 6 hour to cover the same distance upstream. What is the speed of the boat in km/hr

A.

5

B.

7.5

C.

10

D.

12

Asked In exam MAN (12 years ago)

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(#M40020575) EXAM QUESTION time,speed Keep an EYE

A hare sees a dog 200m away from her and scuds off in opposite direction at a speed of 24 km/hr. Two minutes later the dog perceives her and gives chase at a speed of 32km/hr. How soon will the dog overtake the hare, and what distance from the spot from where the hare took flight?

A.

8 min, 2 km

B.

7.5 min, 2 km

C.

7.5 min, 3km

D.

7.5 min, 2.5km

Asked In exam MAN (12 years ago)

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(#M40020574) EXAM QUESTION time,speed Keep an EYE

A skating champion moves along the circumference of a circle of radius 28m in 44 sec. How many seconds will it take her to move along the perimeter of a hexagon of side 48 m?

A.

90

B.

84

C.

68

D.

72

Asked In exam MAN (12 years ago)

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(#M40020572) EXAM QUESTION time,speed Keep an EYE

A train leaves station X at 5am and reaches station Y at 9am. Another train leaves station Y at 7am and reaches station X at 10:30 am. At what time do the two trains cross each other?

A.

7:36 am

B.

7:56 am

C.

8:36 am

D.

8:56 am

Asked In exam MAN (12 years ago)

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(#M40020571) EXAM QUESTION time,speed Keep an EYE

A monkey tries to ascend a greased pole 14 m high. He ascends 2 m in first two minutes and slips 1 m in alternate minute. If he continues to ascend in this fashion, how long does he take to reach the top?

A.

26 min

B.

24 min

C.

22 min

D.

25 min

Asked In exam MAN (12 years ago)

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(#M40020569) EXAM QUESTION time,speed Keep an EYE

Wheel of diameter 7cm and 14 cm start rolling simultaneously from X and Y which are 1980cm apart towards each other in opposite directions. Both of them make same number of revolutions per second. If both of them meet after 10s, the speed of the smaller wheel is:

A.

22 cm/s

B.

44 cm/s

C.

66 cm/s

D.

88 cm/s

Asked In exam MAN (12 years ago)

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(#M40020568) EXAM QUESTION time,speed Keep an EYE

Jay started cycling along the boundaries of a square field from corner point A. After half an hour he reached the corner point C, diagonally opposite to A. If his speed was 8km/hr, the area of the filed in square km is:

A.

64

B.

16

C.

9

D.

4

Asked In exam MAN (12 years ago)

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(#M40020567) EXAM QUESTION time,speed Keep an EYE

In a race, the speeds of A and B are in the ratio 3:4. A takes 30 minutes more than B to reach the destination. The time taken by A to reach the destination is:

A.

1 hr

B.

1.5 hr

C.

2 hr

D.

2.5 hr

Asked In exam MAN (12 years ago)

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(#M40020566) EXAM QUESTION time,speed Keep an EYE

Rahul can row a certain distance downstream in 6 hour and return the same distance in 9 hour. If the speed of Rahul in still water is 12 km/hr, Find the speed of the stream.

A.

2 km/hr

B.

2.4 km/hr

C.

3 km/hr

D.

1.5 km/hr

Asked In exam MAN (12 years ago)

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(#M40020564) EXAM QUESTION time,speed Keep an EYE

A car driver driving in fog, passes a pedestrian who was walking at the rate of 2km/h in the same direction. The pedestrian could see the car for 6 min and it was visible to him up to a distance of 0.6 km. The speed of the car would be :

A.

8 km/h

B.

800 m/h

C.

200 m/h

D.

15 km/h

Asked In exam MAN (12 years ago)

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(#M40020563) EXAM QUESTION time,speed Keep an EYE

X and Y start walking towards each other at 10am at speeds of 3km/hr and 4km/hr respectively. They were initially 17.5 km apart. At what time do they meet?

A.

2:30 pm

B.

11 :30 pm

C.

1:30 pm

D.

12 :30 pm

Asked In exam MAN (12 years ago)

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(#M40020562) EXAM QUESTION time,speed Keep an EYE

Two places A and B are separated by a distance of 200 m. Ajay and Jay have to start simultaneously from A, go to B and return to A. In 10 s they meet at a place 10m from B. If Ajay is faster than Jay, in how much time, after they start, will Ajay return to A?

A.

19 sec

B.

200
21
sec

C.

400
21
sec

D.

190
21
sec

Asked In exam MAN (12 years ago)

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(#M40020561) EXAM QUESTION time,speed Keep an EYE

A man sitting in train travelling at the rate of 50 km/hr observes that it takes 9 sec for a goods train travelling in the opposite direction to pass him. If the goods train is 187.5m long. Find its speed

A.

40 km/hr

B.

30 km/hr

C.

24 km/hr

D.

25 km/hr

Asked In exam MAN (12 years ago)

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(#M40020560) EXAM QUESTION time,speed Keep an EYE

P and Q start running in opposite directions (towards each other) on a circular track starting at diametrically opposite points. They first meet after P has run for 75m and then they next meet after Q has run 100 m after their first meeting. Assume that both of them are running a constant speed. The length of the track (in metre) is:

A.

70

B.

175

C.

250

D.

350

Asked In exam MAN (12 years ago)

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(#M40020559) EXAM QUESTION time,speed Keep an EYE

A hare, pursued by a grey-hound is 20 of her own leaps ahead of him. While the hare takes 4 leaps, the grey-hound takes 3 leaps. 3 leaps of grey-hound is equal to 2 leaps of hare. In how many leaps will the grey-hound overtake the hare?

A.

180 leaps

B.

270 leaps

C.

360 leaps

D.

90 leap

Asked In exam MAN (12 years ago)

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(#M40020557) EXAM QUESTION time,speed Keep an EYE

A motorboat whose speed is 15 km/hr in still water goes 30km downstream and comes back in four and a half hours. The speed of the stream is:

A.

4.5 km/hr

B.

6 km/hr

C.

7 km/hr

D.

5 km/hr

Asked In exam MAN (12 years ago)

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(#M40020555) EXAM QUESTION time,speed Keep an EYE

A boatman rows to a place 45 km distant and back in 20 hour. He finds that he can row 12 km with the stream in the same time as 4km against the stream. Find the speed of the stream.

A.

3 km/hr

B.

2.5 km/hr

C.

4 km/hr

D.

3.5 km/hr

Asked In exam MAN (12 years ago)

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(#M40020554) EXAM QUESTION time,speed Keep an EYE

Two identical trains A and B running in opposite direction at same speed tale 2 min to cross each other completely. The number of bogies of A are increased from 12 to 16. How much more time would they now require to cross each other?

A.

40 sec

B.

50 sec

C.

60 sec

D.

20 sec

Asked In exam MAN (12 years ago)

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(#M40020553) EXAM QUESTION time,speed Keep an EYE

A train covered a certain distance at a uniform speed. If the train had been 6 km/hr faster, it would have taken 4 hour less than the scheduled time. And, if the train were slower by 6 km/hr, the train would have taken 6hr more than the scheduled time. The length of the journey is:

A.

700 km

B.

740 km

C.

720 km

D.

760 km

Asked In exam MAN (12 years ago)

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(#M40020552) EXAM QUESTION time,speed Keep an EYE

A ship 77 km from the shore, springs a leak which admits to 9/2 tonnes of water in 11/2 minutes. 92 tonnes of water would sink it. But the pumps can throw out 12 tonnes of water per hour. Find the average rate of sailing so that the ship may just reach the shore as it begins to sink.

A.

10.5 km/hr

B.

11 km/hr

C.

10 km/hr

D.

12.5 km/hr

Asked In exam MAN (12 years ago)

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(#M40020551) EXAM QUESTION time,speed Keep an EYE

The circumference of the front wheel of a cart is 40 ft long and that of the back wheel is 48 ft long. What is the distance travelled by the cart, when the front wheel has done five more revolutions than the rear wheel?

A.

950 ft

B.

1450 ft

C.

1200 ft

D.

800 ft

Asked In exam MAN (12 years ago)

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(#M40020549) EXAM QUESTION time,speed Keep an EYE

A man can row 4.5 km/hr in still water and he finds that it takes him twice as long to row up as to row down the river. Find the rate of the stream.

A.

2 km/hr

B.

2.5 km/hr

C.

1.5 km/hr

D.

1.75 km/hr

Asked In exam MAN (12 years ago)

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(#M40020548) EXAM QUESTION time,speed Keep an EYE

A train starts from Delhi at 6:00 am and reaches Ambala cantt. at 10am. The other train starts from Ambala cantt. at 8am and reached Delhi at 11:30 am, If the distance between Delhi and Ambala cantt is 200 km, then at what time did the two trains meet each other?

A.

8:46 am

B.

8:30 am

C.

8:56 am

D.

8:50 am

Asked In exam MAN (12 years ago)

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(#M40020547) EXAM QUESTION time,speed Keep an EYE

The jogging track in a sports complex is 726 m in circumference. Suresh and his wife start from the same point and walk in opposite direction at 4.5 km/hr and 3.75 km/hr respectively. They will meet for the first time in:

A.

5.5 minutes

B.

6 minutes

C.

4.9 minutes

D.

5.28 minutes

Asked In exam MAN (12 years ago)

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(#M40020546) EXAM QUESTION time,speed Keep an EYE

A car travels first half distance between two places with a speed of 40 km/hr and rest of the half distance with a speed of 60 km/hr. The average speed of the car is:

A.

48 km/hr

B.

37 km/hr

C.

44 km/hr

D.

45 km/hr

Asked In exam MAN (12 years ago)

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(#M40020545) EXAM QUESTION time,speed Keep an EYE

A tower is 61.25m high. A rigid body is dropped from its top and at the same instant another body is thrown up-wards from the bottom of the tower with such a velocity that they meet in the middle of the tower. The velocity of projection of the second body is:

A.

24.5 m/s

B.

20 m/s

C.

25 m/s

D.

22 m/s

Asked In exam MAN (12 years ago)

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(#M40020544) EXAM QUESTION time,speed Keep an EYE

A thief steals a car and drives it at 15 km/hr. The theft has been discovered after one hour and the owner of the car sets off in another car at 25 km/hr. When will the owner overtake the thief from the starting point?

A.

1 hr

B.

1.5 hr

C.

2 hr

D.

2.5 hr

Asked In exam MAN (12 years ago)

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(#M40020543) EXAM QUESTION time,speed Keep an EYE

A train 120m in length passes a pole in 12sec and another train of length 100m travelling in opposite direction in 10sec. Find the speed of the second train in km per hour.

A.

43.2 km/hr

B.

43 km/hr

C.

44 km/hr

D.

43.5 km/hr

Asked In exam MAN (12 years ago)

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