Math, asked by shivtrivedi, 10 months ago

please help me out with this question

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Answered by anjia

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Answer

2nd term: a+d=14......(1)

3rd term: a+2d=18...(2)

On solving 1 and 2 , we get

a=10 and d=4

Sum of 51 terms = n/2(2a+(n-1)d)

= 51/2(2×10+(51-1)4)

=5610 is the answer

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