Question
1000 metres long train crosses a man who is moving in
the same direction with a certain speed, in 25 seconds. If the same train can cross a tree in 20 seconds with the same speed, then find the speed of the man.Solution
Speed of train = 1000/25 = 50 m/sec Let the speed of the man be βsβ m/sec Relative speed of the train = (50 β s) m/sec According to the question, (50 β s) = 1000/25 Or, s = 50 β 40 = 10 Therefore, speed of the man = 10 m/sec
Select the option in which the numbers are related in the same way as are the numbers in the given set.
(19, 165, 14)
Choose the word which is different from the rest
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 t...
Identify the number, which when added to itself 15 times gives 608.
Select the option that is related to the third term in the same way as the second term is related to the first term.
VGD: SDA:: USF : ?
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 relat...
If 47 # 56 = 159 and 28 # 38 = 104, then 35 # 49 = ?
Among the given alternatives, three are alike and form a group. Which one does not belong to this group?
If, 35*41 = 13 and 47*35 = 10, then what should 29*59 =?
Given set:Β [20, 82, 31]