Question
A train running with a speed of 99 km/hr can cross a
pole in 13 seconds and a platform in 17 seconds. Find the length of the platform.Solution
Speed of the train = 99 × (5/18) = 27.5 m/sec Length of the train = 27.5 × 13 = 357.5 metres Let the length of the platform be ‘x’ metres Therefore, 357.5 + x = 27.5 × 17 Or, x = 467.5 – 357.5 = 110 metres
What will come in place of the question mark (?) in the following series?
1528, 1416, 1204, ?, 480, -32
143 Â Â Â Â 119Â Â Â Â 107Â Â Â Â 101Â Â Â Â Â 98Â Â Â Â ?
96 89 ? 90 94 91
...What value should come in the place of (?) in the following number series?
19, 235, 260, 324, 333, ?
What will come in place of the question mark (?) in the following series?
305...
In each of the following number series, one term is missing. Find the missing term.
3, 5, 20, 24, 144, 150, ?
1029, 1030, 1039, 1064, ?, 1194
75, 80, 95, ?, 155, 200
What will come in place of the question mark (?) in the following series?
1515, 184, ?, 455, 967, 624
7 29 61 ? 211 349
...
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