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### Question

Speeds of A and B are in the ratio 7 : 2. What is the speed of A if B can cover a distance of 6 Km in 1 hour?

**A**

21 kmph.

**B**

22 kmph.

**C**

20 kmph.

**D**

23 kmph.

**Soln.**

**Ans: a**

The speed of B is 6/1 = 6 km/h. So, the speed of A = ${7 × 6}/2$ = 21 km/h.