Discussion :: Numbers
- (1-1/2)(1-1/3)(1-1/4) ....... (1-1/x) = ?
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Answer : Option D
Explanation :
This type of question can solve by a sort trick that is the first term numerator, and the last term denominator will be the answer.
i.e., 1-1/2 = 1/2, 1-1/3 = 2/3, 1-1/4 = 3/4 and so on
(1/2)*(2/3)*(3/4) .... ((x-1)/x) = (1) (1/x)
The first term denominator cancelled by its next term numerator till the end.
In the end, we get 1/x.
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