Question
The square of sum of two numbers is 4,096 and the sum of
squares of the same two numbers is 2,176. If their H.C.F. is 8, then find their L.C.M.Solution
Let the two numbers be 'a' and 'b'
We have, (a + b)² = 4096
And, a² + b² = 2176
(a + b) ² = a² + b² + 2ab = 2176 + 2ab
Or, 2ab = 4096 - 2176 = 1920
So, ab = 1920/2 = 960
Since product of two numbers = L.C.M × H.C.F.
Therefore, L.C.M = 960 / 8 = 120
Hence, option C.
In each of the following questions select the one which is different from the other three responses.
(A) Calm: Windy
(B) Happy: Sane
(C) Extravagant: Thrifty
(D) Limited: Boundless
Select the one which is different from the other three responses.
Who among the following lives on floor number 6?
In each of the following questions select the one which is different from the other three responses.
Four of the following five figures are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group?
Find the odd word/ letters/number pair/number from the given alternatives.
- Out of the following five figures, four are alike in some manner and one differs from these in that manner. Select the odd figure.
Select the one which is different from the other three responses.
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