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Find the sum of all the 11 terms of an AP whose middle most term is 30.

Omar Khan , 4 Years ago
Grade 10
anser 1 Answers
Harshit Singh

Last Activity: 4 Years ago

Dear Student

Given
middle most term = 30
6thterm = 30
let middle most term i.e 6th term ,a=30
then AP will be a-5d,a-4d,a-3d,a-2d,a-d,a,a+d …...a+5d

Sum of all terms = 11a
sum = 330

Thanks
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