The speed of the boat while travelling upstream is 24 km/hr. The boat can travel X X X km in Y Y Y hours while travelling upstream and 144 km in Y Y Y...

Banking IBPS PO Mains Medium Simplification MCQ

Question

The speed of the boat while travelling upstream is 24 km/hr. The boat can travel $X$ km in $Y$ hours while travelling upstream and 144 km in $Y$ hours while travelling downstream. The time taken (in hours) by the boat to travel 216 km upstream is $Z$ hours more than while travelling the same distance downstream.

Which of the statement/s is/are sufficient/necessary to find the ratio between speed of the boat in still water to speed of the stream?

(A) $X - Y^3 + Z^3 > 102$

(B) Time taken by boat to cover $Z$ km downstream is 18 hours.

Options

(a) Either (A) or (B)

(b) Only (C)

(d) Either (B) & (C) together

boat speedstream speedratioupstreamdownstreamtimedistance

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The speed of the boat while travelling upstream is 24 km/hr. The boat can travel X X X km in Y Y Y hours while travelling upstream and 144 km in Y Y Y...

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