Question
Ravi travels from point ‘P’ to point ‘Q’. If he
drives at 72 km/h, he reaches 40 minutes early. If he drives at 48 km/h, he reaches 50 minutes late. What is the distance between point ‘P’ and point ‘Q’?Solution
Let the distance between point ‘P’ and point ‘Q’ be ‘d’ km Let the correct time to travel be ‘t’ hours According to the question, (d/48) = t + (50/60) = t + 0.833 And, (d/72) = t - (40/60) = t - 0.667 Or, (d/48) - (d/72) = 0.833 + 0.667 = 1.5 Or, (3d - 2d) ÷ 144 = 1.5 Or, d = 1.5 × 144 = 216 Therefore, distance between point ‘P’ and point ‘Q’ is 216 km.
Find the odd one out from the following options.
Find the odd one out
Three of the following four letter-clusters are alike in a certain manner and one is different. Select the odd letter-cluster.
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different from the r...
Four number-pairs are given, out of which three are alike in a certain manner and one is different. Choose the different number-pair.
In the following question, select the odd number from the given alternatives.
Odd one out
Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digi...
Select the option in which the numbers are not related in the same way as are the number of the following set.
(5, 12, 180)
