Question
A train takes 16 seconds to pass a pole and 36 seconds
to cross a platform 250 meters long. Calculate the total distance the train would cover if it traveled continuously for 5 hours.Solution
Let speed of train is ‘x’ m/s and length of train is ‘l’ metres According to question; l = 16x And, l + 250 = 36x Or, 16x + 250 = 36x Or, 20x = 250 Or, x = 12.5 Speed of train = 12.5 × 18/5 = 45 km/h Distance travelled by train in 5 hours = 45 × 5 = 225 km Hence, option a.
What value should come in the place of (?) in the following number series?
178, ?, 692, 861, 982, 106331Â Â Â 40Â Â Â 51Â Â Â 64Â Â Â 79Â Â Â Â ?
What will come in place of the question mark (?) in the following series?
92, 153, 220, ?, 364, 443
32, 48, 72, 108, ?, 243
10, 10, 15, 30, 75, ?
17, 36, 65, 104, 153, ?
12, 16, ?, 48, 76, 112
114, 146, 210, 306, 434, ?
What will come in place of (?) Question mark in the given number series.
10, 15, 30, 75, 225, 787.5, ?
5, 18, 39, ?, 105, 150
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