Question
Speed of boat is 15 km/hr. Speed of the stream is 20%
less than speed of boat. Then find time taken by boat to go 81 km downstream?Solution
Speed of stream = 15 × (80/100) = 12 km/hr Time taken to go 81 km = 81/(15 + 12) = 3 hrs
More ESIC Part B Questions
25Â Â Â 26Â Â Â Â 28Â Â Â Â 32Â Â Â Â 42Â Â Â Â 56
11Â Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â Â Â Â Â 20Â Â Â Â Â Â Â Â Â Â 18Â Â Â Â Â Â Â Â Â Â 37Â Â Â Â Â Â Â Â Â Â 36
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1500, 1450, 1390, 1350, 1240, 1150
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- Find the wrong number in the given number series.
50, 64, 90, 134, 190, 260
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