Question

A and b travel the same distance at the rate of 8 kilometre and 10 kilometre an hour respectively. If a takes 30 minutes longer than b, the distance travelled by b is * 1 point

Answer 1

Answer:

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Answer 2

Answer:

20km

Step-by-step explanation:

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

so time taken will be 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

so total distance will be 20km