Question

a and b travel the same distance at the rate 8 kilometer and 10 kilometre and hour respectively. if i take 30 minutes longer b, the distance travelled by b is

Answer 1

Explanation:

60 minutes will be taken by b

Answer 2

Answer:

20 km

Explanation:

Ratio of A's speed B's speed is 8/10

So time taken is inverse

I.e 10/8 the difference here is 2 I.e(10-8)

but ATQ A takes 30 mins longer

so if 2 correspondence to 30

1 correspondence to 15 i.e(30/2)

and 8 correspondence to 120 i.e(15*8)

120 min is 2 hrs

so B moves 2 hrs @10 kmph

Therefore the total distance will be 20 km..

MAY THIS ANSWER IS HELPFUL TO YOU..