Question
A man can row 25/2 km an hour in still water and he
finds that it takes him thrice as long to row up as to row down the river. The rate of stream is:Solution
Let the rate of stream be x km/hr Then, Speed of downstream = `(25/2) + x` km/hr Speed of upstream = `(25/2) - x` km/hr (12.5 + x) = 3 (12.5 - x ) 12.5 + x = 37.5 - 3x 4x = 25 x = 6.25 km/hr
In each of the following questions select the related letter/word/figure/number from the given alternatives.
25 : 175 : : ? : 160
Select the option that is related to the third number in the same way as the second number is related to the first number.
53: 636 :: 51: ?
Select the word-pair in which the two words are related in the same way as the two words in the following word-pair.
Author : Book
Four numbers have been given, out of which three are alike in some manner and one is different. Select the number that is different.
Which set of letters when sequentially placed at the gaps of the given letter series shall complete it?
C L _ I M C _ A I M C L _ _ M CL _ I M
Select the number pair which is related in the same way as the two numbers of the following pair:
64 : 25
Select the option that is related to the third number in the same way as the second number is related to first number and the sixth number is related to...
- 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 fifth ...
Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is rela...
Select the option that is related to the third number in the same way as the second number is related to the first number.
13 : 2366 :: 9 : ?
