Question

Rohan takes 200 steps a minute each 10 cm long and tito walks 2 km /hr.If they start up together,when will one of them be 86m ahead of each other?

Answer 1

Answer:

15km = 15 kilo-meter = 15 *10^3 m = 15*1000 m =15000 m

I hour = 60 minutes & 1 minutes =60 seconds

It takes rohan 60 minutes to cover 15000 m distance.

So in 1 minutes he can cover (x) =Total distance /Total time

X = 15000 metre /60 minutes

X = 250 metre

Now the new approach

Rohan can cover 250 meters in 1 minutes (60 seconds)

1 minutes = 60 seconds = 250 metres =100%

0.5 minutes = 30 seconds = 125 metres =50%

From above line i can say the answer is within 30 seconds or one can say within 0.5 minutes.

Explanation:

Hope it helps you ☺️