A and B walk round a circular track They start at 8 am from the same point in opposite directions A and B walk at a speed of 2 rounds per hour and 3 rounds per hour respectively How many times shall they cross each other before 9.30 am

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C 7
Relative speed = (2 + 3) km/hr = 5 km/hr This means that A and B cross each other 5 times in a hour and at least 2 times in half an hour
$∴$ They cross each other 7 times before 9:30 a.m.

Suggest Corrections

Similar questions

A

walks around a circular field at the rate of one round per hour while

B

runs around it at the rate of six rounds per hour. They start in the same direction from the point at

7.30

a . m .

They shall first cross each other at:

Q. Two persons A and B walk round a circle whose diameter is

1.4 k m

. A walks at a speed of

165

meters per minute while B walks at a speed of

110

meters per minute. If they both start at the same time from the same point and walk in the same direction, at what interval of time would they both be at the same starting point again?

Q. Round 1: Car A and Car B start moving in opposite direction to each other from two different points which are 22.4 Km apart. They meet after 2 hours.

Round 2: Car A and Car B start from same point in same direction and after 3 hours, difference of their covered distance becomes 26.4 Km.

Given that speed of both cars remains same in both rounds and speed of car A > speed of car B.

Find the speed of Car A(in Km/hr).

A and B start at the same time from two places 30 km apart. If they walk in the same direction, A overtakes B in 10 hours and if they walk in opposite directions they meet in 2 hours. Find the rate of walking of A.

Ramesh takes 18 minutes to complete a round of a ground which Aslam takes 24 minutes to complete the same round. Suppose they start from the same point and at the same time and go in the same direction. After how many minutes will they meet again? How many times will they meet in 6 hours?

Join BYJU'S Learning Program

A and B walk round a circular track They start at 8 am from the same point in opposite directions A and B walk at a speed of 2 rounds per hour and 3 rounds per hour respectively How many times shall they cross each other before 9.30 am

The correct option is C 7Relative speed = (2 + 3) km/hr = 5 km/hr This means that A and B cross each other 5 times in a hour and at least 2 times in half an hour∴ They cross each other 7 times before 9:30 a.m.

The correct option is C 7
Relative speed = (2 + 3) km/hr = 5 km/hr This means that A and B cross each other 5 times in a hour and at least 2 times in half an hour
$∴$ They cross each other 7 times before 9:30 a.m.