Question
1260 metres long train crosses a man who is moving in
the same direction with a certain speed in 30 seconds. If the same train can cross a pole in 21 seconds with the same speed, then find the speed of the man.Solution
Let the speed of the man be lsquo;xrsquo; m/sec. Speed of train = 1260/21 = 60 m/sec Relative speed of the train = (60 ndash; x) m/sec According to the question, =gt; (60 ndash; x) = 1260/30 =gt; x = 60 ndash; 42 =gt; x = 18 Therefore the speed of the man = 18 m/sec
More Trains Questions
√323.89 × (3.20) ÷ 9.02 =?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
23.98% of 624.99 = 19.98% of ? + 14.98% of 639.99
Direction: Please solve the following expression and choose the closest option
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
12, 16, ?, 36, 52, 72
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
(6859.01)1/3 × 10.11 × 14.47 ÷ 20.32 = ? + 45.022
33.33% of 809.891 + 66.66% of 212.91 = ?
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