Question

A, B and C walk 1
km in 5 minutes, 8
minutes and 10
minutes respectively,
starts walking
from a point at a
certain time, B starts
walking from the
same point 1 minute
later and starts
from the same point
2 minutes later than
C. Then A meets B
and C respectively,
after
A.5/3 minutes and 2 minutes
B. 1 minute and 2 minutes
C. 2 minutes and 3 minutes
D. 4/3 minutes and 3 minutes​

Answer 1

Step-by-step explanation:

option A is the correct answer

hope it will help you

Answer 2

So the answer will be option (a)

Explanation :

A covers 1km in 5 min

Speed of A is 1km/5min=1000m/300sec=10/3 in m/sec

Similarly

Speed of B is 1km/8min=1000m/480sec=25/12 in m/sec

Speed of C is 1km/10min=1000m/600sec=10/6 in m/sec

As A starts after 1 min of B and 2 min of C:

Distance covered by B in 1 min=25*60/12=125m

Distance Covered by C in 2 min=10*120/6=200m

Time taken by A to meet B assuming to be x can be calculated by the below mentioned equation:

x*10/3=125+(x*25/12)

solving for x we get x=100sec = 5/3 min

Time taken by A to meet C assuming to be x can be calculated by the below mentioned equation:

x*10/3=200+(x*10/6)

solving for x we get x=120sec = 2 min