Question

Question 4

Distances travelled by Hamid and Akhtar in an hour are 9 km and 12 km. Find the ratio of the speed of Hamid to the speed of Akhtar.

Answer 1

We know that, Speed = $\frac{Distance}{Time}$

Speed of Hamid = $\frac{9km}{1h}$ = 9 km/h

Speed of Akhtar = $\frac{12km}{1h}$ = 12 km/h

Ratios are used to compare quantities which have same units. In this case, units of speed of Hamid and Akhtar is same i.e. km/h. Hence, we can find the required ratio.

$\therefore$ Ratio of speed of Hamid to the speed of Akhtar

= $\frac{SpeedofHamid}{SpeedofAkhtar}$

$\frac{9}{12}$ = $\frac{3}{4}$ = $3:4$ [Dividing numerator and denominator by HCF of 9 and 12 i.e. 3]