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.

1.  2 km/hr

2.  2.4 km/hr

3.  3 km/hr

4.  1.5 km/hr

View Answer  
4
Correct Answer :

2.4 km/hr


Explanation :
No Explanation available for this question

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:

1.  1 hr

2.  1.5 hr

3.  2 hr

4.  2.5 hr

View Answer  
4
Correct Answer :

2 hr


Explanation :
No Explanation available for this question

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:

1.  64

2.  16

3.  9

4.  4

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

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:

1.  22 cm/s

2.  44 cm/s

3.  66 cm/s

4.  88 cm/s

View Answer  
4
Correct Answer :

66 cm/s


Explanation :
No Explanation available for this question

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

1.  26 min

2.  24 min

3.  22 min

4.  25 min

View Answer  
4
Correct Answer :

25 min


Explanation :
No Explanation available for this question

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

1.  7:36 am

2.  7:56 am

3.  8:36 am

4.  8:56 am

View Answer  
4
Correct Answer :

7:56 am


Explanation :
No Explanation available for this question

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

1.  90

2.  84

3.  68

4.  72

View Answer  
4
Correct Answer :

72


Explanation :
No Explanation available for this question

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

1.  8 min, 2 km

2.  7.5 min, 2 km

3.  7.5 min, 3km

4.  7.5 min, 2.5km

View Answer  
4
Correct Answer :

7.5 min, 3km


Explanation :
No Explanation available for this question

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

1.  5

2.  7.5

3.  10

4.  12

View Answer  
4
Correct Answer :

10


Explanation :
No Explanation available for this question

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

1.  3 hr 6 min

2.  3 hr 16 min

3.  3 hr 26 min

4.  3 hr 36 min

View Answer  
4
Correct Answer :

3 hr 36 min


Explanation :
No Explanation available for this question
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