Two boats P & Q are rowing in two different rivers X & Y respectively. Find the distance covered by boat Q in 15 hours downstream. (i) Sum of ...

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Question

Two boats P & Q are rowing in two different rivers X & Y respectively. Find the distance covered by boat Q in 15 hours downstream.

(i) Sum of speed of stream in X and Y is 12 km/hr.

(ii) Distance covered by boat Q in Z hours downstream is 120 km more than the distance covered by boat Q in (Z + 2) hours upstream.

(iii) Boat P can cover 420 km downstream in 8 hours while boat Q can cover 120 km upstream in six hours.

Which of the following statements are sufficient to find the distance covered by boat Q in 15 hours downstream?

(a) Both (ii) & (iii)

(b) Only (iii)

(d) Both (i) & (iii)

(e) None

boatsstreamsspeeddistancealgebraequations

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