Question
A boat can travel 12 km upstream in 30 min. If the ratio
of the speed of the boat in still water to the speed of the stream is 5:1, how much time will the boat take to cover 15 km downstream?Solution
Speed ratio = 5x : 1x. Downstream = 6x; upstream = 4x. Upstream speed = 12 km / 0.5 hr = 24 kmph. 4x = 24, x = 6. Downstream speed = 6x = 36 kmph. Time taken for 15 km downstream = 15 km/36 kmph = 25 min.
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Select the sentence that contains no spelling errors.
Directions: In each question below, four words printed in bold type are given. These are numbered (A), (B), (C) and (D). One these words printed in bol...
- In each of the questions below, a sentence is given with four words highlighted in bold in the sentence. Among these bold words, one may be wrongly spelt. ...
1) depraive
2) deprave
3) deprayve
4) deprawve
5) none of these
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- In each of the questions below, a sentence is given with four words highlighted in bold in the sentence. Among these bold words one may be wrongly spelt. T...
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