Question

P,Qand S are moving on a circular stadium of circumference 2100 m. when P complete one round,Q is still 700 m behind. when S complete one round , Qis 300 m ahead of him. How far from the starting point three of them will meet for the first time?
a. 1050m
b.168m
c. 2100m
D. 0m​

Answer 1

Answer:

0 m

Step-by-step explanation:

P,Qand S are moving on a circular stadium of circumference 2100 m

when P complete one round,Q is still 700 m behind

=> P completes = 2100 m

& Q completed = 2100 - 700 = 1400 m

When S completed one round Qis 300 m ahead of him

=> S completed = 2100 m

& Q completed = 2100 + 300 = 2400 m

Q completed 2400 m  =>  S completed = 2100 m

=> Q completed 1 m  =>  S completed = 2100/2400 = 7/8 m

=> Q completed  1400 m => S completed = 1400 * 7/8  = 1225 m

After P completed one round

P = 2100 m    Q = 1400 m   & S  = 1225

P & Q  will always meet at Starting Point as

3*2100 = 6300    & 3 * 1400 = 4200 m

so at starting point they will meet

from the starting point three of them will meet for the first time = 0 m