Question

in covering 40 km ribha took 2 hours more than Vijaya.if Vijaya speed was 80 km find the speed of ribha​

Answer 1

Answer: 20 km for 2 hours i guess

Answer 2

Answer:

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While covering a distance of 30 km. Ajeet takes 2 hours more than Amit. If Ajeet doubles his speed, he would take 1 hour less than Amit. Find their speeds of walking.

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Solution

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Distance=speed×time

Let the speed of Ajeet and Amit is x,y respectively

From the given conditions

x

30

=2+

y

30

⋯(1)

2(x)

30

=

y

30

−1⋯(2)

(1)−(2)⟹

2(x)

30

=3⟹x=5

From (1)⟹6=2+

y

30

⟹y=

4

30

=7.5

The speeds of Ajeet and Amit are 5,7.5 km/hr respectively