Question
A boat travels 315 km downstream
in 7 hours and 135 km upstream in 9 hours. Determine the total time the boat takes to cover 150 km upstream and 120 km in still water.Solution
ATQ, Downstream speed of the boat = 315/7 = 45 km/hr Upstream speed of the boat = 135/9 = 15 km/hr Speed of the boat in still water = (45 + 15)/2 = 60/2 = 30 km/hr Required Sum = (150/15) + (120/30) = 10 + 4 = 14 hours
Arrange the given words in a meaningful and logical sequence.
1- Hospital
2- Happiness
3- Hobby
4- Horse
5- Horizon
How many letters are there between the second symbol from the left end and the 5 th number from the right end in the given arrangement?
Which of the following is also known as 'Hard Booting'?
POST stands for ...........
How many letters are there in the given series which are immediately followed by a number?
L 6 7 Z @ U 5 % 6 L M @ N P L 9 @ Y # 5 F 6
Select the combination of letters that when placed sequentially in the blanks of the given series will complete the series.
T __ __ O K __ __ ...
Which of the following is a computer network that usually spans a city or a large campus?
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
WQM, TNJ, XRN, ?
Which among the following pairs of months will have the same calendar ?
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