A car complete a certain journey in 8 hour. It cover half the distance at 40 km/hr and the rest at 60 km/hr, The length of a journey is ?

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Mathematics

asked Sep 07, 2023 at 09:12

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Answer 1

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Let the length of total journey be y km. From question ( y/2 x 1/40 ) + ( y/2 x 1/60) = 8 ⇒ y/80 + y/120 = 8 ⇒ 3y + 2y = 1920 ∴ y = 384 km.

answered Sep 07, 2023 at 09:12

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Answer 2

Let the length of total journey be y km. From question ( y/2 x 1/40 ) + ( y/2 x 1/60) = 8 ⇒ y/80 + y/120 = 8 ⇒ 3y + 2y = 1920 ∴ y = 384 km.

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