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Multiple Choice Questions

A boat travels upstream at the speed of 10 km hr for t hours and downstream at the speed of 14 km hr...........

Quantitative Aptitude(IBPS RRB CL) Boats and Streams

A boat travels upstream at the speed of 10 km/hr for t hours and downstream at the speed of 14 km/hr for 6 hours. If the distance travelled in downstream direction is 44 km more than that in upstream direction, then what is the value of t?

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Explanation:

Distance = Speed × Time
The distance travelled in downstream direction = 14 × 6 = 84 km
The distance travelled in upstream direction = 10 × t = 10t km
According to question
84 – 10t = 44
⇒ 10t = 84 – 44 = 40
⇒ t = 40/10= 4

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