In a 1 km race, A beats B by 28 meters in 7sec. Find A’s time over the course?
A) 5min,4sec B) 4min,3sec
C) 2min,3sec D) 3min,4sec
In a kilometer race
Answer: B) 4min,3sec
B covers 28 meters in 7sec. So, B’s time over the course = (7/28)*100 =250 sec.
Whereas A’s time over the course = 250 -7 = 243 sec.
i.e A’s time over the course is 4min , 3 sec.
Subject: Races and Games – Quantitative Aptitude – Arithmetic Ability