Q. In an AP of 99 terms, the sum of all the odd numbered terms is 2550. Then sum of all 99 terms is

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Answer is 5049

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Answer 5049

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We know that: S(n) = (n/2){ T(1) + T(n) }?

Given that:?

(50/2){ T(1) + T(99) } = 2550?
T(1) + T(99) = 102?

Now sum of all the 99 terms:?

(99/2) {T(1) + T(99)} = (99/2)*102 = 5049
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