Problem Solving MCQ Set 17

Question: In a kilometre race, A can give B a start of 100 m or 15 seconds. How long does A take to complete the race?

1. 150 seconds
2. 165 seconds
3. 135 seconds
4. 66.67 seconds

Question: A gives B a start of 10 metres in a 100 metre race and still beats him by 1.25 seconds. How long does B take to complete the 100 metre race if A runs at the rate of 10 m/sec?

1. 8 seconds
2. 10 seconds
3. 16.67 seconds
4. 12.5 seconds

Question: A predator is chasing its prey. The predator takes 4 leaps for every 6 leaps of the prey and the predator covers as much distance in 2 leaps as 3 leaps of the prey. Will the predator succeed in getting its food?

1. Yes
2. In the 6th leap
3. Never
4. Cannot determine

Question: A skating champion moves along the circumference of a circle of radius 21 meters in 44 seconds. How many seconds will it take her to move along the perimeter of a hexagon of side 42 meters?

1. 56
2. 84
3. 64
4. 48

Question: A runs 13/5 times as fast as B. If A gives a start of 240m, how far must the post be so that A and B might reach at the same time.

1. 390 m
2. 330 m
3. 600 m
4. 720 m

Question: A gives B a start of 30 seconds in a km race and still beats him by 20 m. However, when he gives B a start of 35 seconds, they finish the race in a dead heat. How long does A take to run the km?

1. 250 seconds
2. 285 seconds
3. 220 seconds
4. 215 seconds