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The ratio of the speed of a boat in still water to the speed of the stream is 4 : 1 4 : 1 4 : 1 respectively. The difference between the time taken by...

Banking RBI Grade B Prelims Medium Number System (including HCF LCM) MCQ

Question

The ratio of the speed of a boat in still water to the speed of the stream is 4:14 : 1 respectively. The difference between the time taken by the boat to cover DD km downstream and upstream is $10$ hours. (Note: Speed of the stream is 5km/hr5 { km/hr})

Quantity I: Find the time taken by the boat to cover (D−75)(D - 75) km downstream

Quantity II: Find the time taken by the boat to cover (D+45)(D + 45) km upstream

Compare Quantity I and Quantity II:

Options

A.

(a) Quantity I > Quantity II

B.

(b) Quantity I < Quantity II

C.

(c) Quantity I 6 Quantity II

D.

(d) Quantity I 5 Quantity II

boats and streamstime and speedratioalgebra

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