Question

(b) Distance = 8 m, speed = 8.4 sec
​

Answer 1

Step-by-step explanation:

Then we want to find time taken

D=8,S=8.4,T=?

time =distance/time

800÷42/5

So =800×5/42== 400×5/21((dividing numerator and denominator by 2)))

= 2000/21 Sec

Ans approximately 1min 35 s