Question

A and b take part in 100 m race a runs at kmph...A gives b a start of 8m and still beats him by 8 dec the speed of b is

Answer 1

Answer:

Explanation:

A's speed = (5*5/15)m/sec  = (25/18)m/sec

Time taken by A to cover 100 m = (100*18/15)sec = 72sec

 Time taken by B to cover 92 m = (72 + 8) = 80 sec.

 B's speed =(92/80*18/5)kmph =4.14kmph