Let the present ages of A and B are 5x and 3x years respectively. Then
A's age 4 years ago = 5x - 4
B's age 4 years hence = 3x + 4
According to question,
The ratio between A's age 4 years ago and B's age 4 years hence is 1 : 1
(5x - 4)/(3x + 4) = 1 : 1 = 1
? 5x - 4 = 3x + 4
? 2x = 8
? x = 4
present ages of A and B are 20 and 12 years.
The ratio between A's age 4 years hence and B's age 4 year ago is:
Hence, required ratio = (20 + 4) : (12 - 4) = 24 : 8 = 3: 1
Only '48' is not square of any number.
Carom is an indoor game.
3781 is the odd one out as other numbers contain only odd digits.
First indicates the lack of the second.
Conclusions:
All others are two in number.
F < E < J ? H > Z H ? Y and Z < H
As study of 'Brain ' is called 'Neurology', similarly, 'study' of Body is called 'physiology'.
A and C cannot be part of the same team since F has to be always selected with C but never with A.
as we don't know the gender of L.
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