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R and S start walking each other at 10 A...

R and S start walking each other at 10 AM at the speeds of 3 km/hr and 4 km/hr respectively. They were initially 17.5 km apart. At what time do they meet?

A

`2:30` PM

B

`11:30 AM`

C

`1:30 PM`

D

`12:30 PM`

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The correct Answer is:
D
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