A takes 2 hours more than B to walk d km, but if A doubles his speed, then he ca

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A takes 2 hours more than B to walk d km, but if A doubles his speed, then he can make it in 1 hour less than B. How much times does B required for walking d km ?

Options:

A . $$\frac{d}{2}$$ hours

B . 3 hours

C . 4 hours

D . $$\frac{2d}{3}$$ hours

Answer: Option C

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