JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

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Application +4 | -1

If the sum of series

\frac{1}{1 \cdot(1+d)}+\frac{1}{(1+d)(1+2 d)}+\ldots \ldots +\frac{1}{(1+9 d)(1+10 d)}

is equal to 5, then

50 {d}

is equal to:

View answer and explanation

Correct option: B

Option B (5) is correct because the value of 50d is 5, which is obtained by simplifying the given series and solving for d.

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