Are they racing

Algebra Level 1

A is twice as fast as B and B is thrice as fast as C .

The distance covered by C in 42 minutes will be covered by A in

15 min 14 min 9 min 7 min

Dinesh Nath Goswami by Dinesh Nath Goswami , 20, India

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1 solution

C takes 42 42 minutes.

⟹ \implies B takes 1 3 × 42 \dfrac{1}{3}\times 42 minutes = 14 =14 minutes.

⟹ \implies A takes 1 2 × 14 \dfrac{1}{2}\times 14 minutes = 7 =\boxed{7} minutes

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