Question

OILU
In a one Kilometer race A beats B by 28
meters or 7 seconds. Find out the time taken
by A to finish the race.
(Á) 4 Mins 3 secs (B) 3 min 4 secs
5 mins
(D) 4 mins 20 secs​

Answer 1

Answer:

Option A) is correct

Step-by-step explanation:

Distance 1Km = 1000m

A reaches earlier than B by 28 metres aw well as 7 seconds , this statement shows that B takes 7 seconds to complete 28 metres , therefore speed of

B = 28/7 m/s

B= 4m/s

For 1000m race B will take 250 seconds

but A takes 7 seconds less than B , therefore time taken by A is 243 seconds.

243 seconds = 4 mins 3 secs