Question
A boat running downstream covers a distance of 42 km in
6 hrs and covering the same distance upstream in 14 hrs. What is the speed of a boat in still water?Solution
Downstream speed = 42/6 = 7 km/hr Upstream speed = 42/14 = 3 km/hr So speed of boat in still water = (7 + 3)/2 = 5 km/hr
More Boats and streams Questions
6000 3002 1503 ? 378.75 191.375 97.6875
...1, 27, ?, 343, 729, 1331
(32.03 + 111.98) ÷ 18.211 = 89.9 – 20.23% of ?
51 53 109 332 ? 6686
...9 4.5 4.5 9 36 ?
5 16 ? 66 119 200
...1 1 8 4 27 9 ?
...What will be the next number in the series?
2, 7, 23, 70, ?
There are three series given below which are following with the same pattern.
Series I: 1, 12, 38, 193, 1355
Series II: 6, B, C, D, E
...Direction: Which of the following will replace ‘?’ in the given question?
5, 18, ‘?’, 126, 296, 586, 1044
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