Question

If rohit covered 120m in 20 sec, then how much time would he cover 210m?

Answer 1

HEYA



210/120=X/20 IS THE EQUATION USED TO FIND THIS ANS


X = 210×20/120

X = 35
SO, ANS IS 35 sec

hope it helps u

Answer 2

The speed of Rohit is constant & is equal to the ratio of distance traveled  to the time taken. Hence we can find out the required time $t$ as follows  

$\frac{120}{20}=\frac{210}{t}$

$t=\frac{210\times 20}{120}$  

$=35 sec$