Question
A train runs at an average speed of 96 km/hr when not
halted. Including stoppages, its average speed drops to 72 km/hr for the same journey. For how many minutes per hour does the train remain stationary?Solution
Time of stoppages per hour = Difference in average speeds / Speed without stoppage × 60
So, time of stoppages per hour = (96 – 72)/96 × 60 = 15 minutes
Therefore, the train remains stationary for 15 minutes  per hour.
Find the wrong number in the series given below.
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Select the number from among the given options that is wrong in the following series.
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Find the wrong number in the given series.
60, 65, 75, 95, 125, 195, 355Â Â
Arrange the following words in a logical and meaningful order.
1. Monkey
2. Elephant
3. Rat
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Select the wrong term in the series.
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Find the wrong number in the series given below.
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