exam Maths Puzzle

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

Read Solution (Total 1)

12.30pM as the distance between then is 17.5km
As they are coming from opposite to each other, relative velocity will bd added.3+4=7km/ph.now 17.5/7 gives 2 1/2hr.means 10am +2 =12pm plus additional 30mins.so answer should be 12.30pm.
8 years agoHelpfull: Yes(1) No(0)

exam Other Question

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
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