Question
Speed of a boat in still water is three times the speed
of the boat in upstream. If the boat takes 25 minutes to cover 50 km in downstream, then find the speed of the boat in still water.Solution
Let speed of the boat in still water be ‘3x’ km/h. Speed of the boat in upstream = 3x ÷ 3 = ‘x’ km/h Speed of the stream = 3x – x = ‘2x’ km/h Speed of the boat in downstream = 3x + 2x = ‘5x’ km/h ATQ; (50/25) × 60 = 120 So, 5x = 120 Or, x = 24 So, speed of the boat in still water = 3 × 24 = 72 km/h
Select the option in which the numbers are not related in the same way as are the number of the following set.
(12, 15, 90)
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Which word will best complete the relationship given below?
Bricklayer : Trowel :: Tailor : ?
Select the option that is related to the third term in the same way as the second term is related to first term and the sixth term is related to the fi...
Select the related number from the given alternatives:
8 : ? :: 7 : 344
- Select the option that is related to the third number in the same way as the second number is related to the first number.
25 : 105 :: 55 : ? 45 : 9 ::Â (?) Â : 7
Select the option that is related to fourth letter-cluster in the same way second letter cluster is related to first letter-cluster.
Rose: Flo...
If 14 @ 8 = 4 and 22 @ 15 = 6, then 18 @ 12 = ?'. What will come in place of question mark?
‘Confined spaces’ is related to ‘Claustrophobia’ in the same way as ‘Insects’ is related to ‘______’.
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