A boat can travel with a speed of 13 km/hr in still water. If the spee – McqOptions

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1.	A boat can travel with a speed of 13 km/hr in still water. If the speed of stream is 4 km/hr in the same direction, time taken by boat to go 63 km in opposite direction is ?
A.	3 (9/17) hrs.
B.	4 hrs,
C.	7 hrs.
D.	9 hrs.
Answer» D. 9 hrs.

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