Question

X can give y a start of 10 m in a 100 m race. If he wins the 120 m race by 2 seconds, find speed of x.

Answer 1

Answer:

speed ox = 5 metre/sec.                                                     (。_。)

Step-by-step explanation:

let speed of x be a.

dis. of x / speed of x = (dis. of y / speed ) + difference of time taken by x & y

100/a = (90/ a )+ 2

=>   100/a = (90+ 2a)/ a

=>   10 a = 2

=>   a = 5

=>   a = 5  metre/sec.

Hope u find it useful.

(°ー°〃)