Question

Find the comman difference of an AP whose 1st term is 5 and the sum of its four terms is half the sum of the next 4 terms

Answer 1

hey buddy!!

Here is your answer;

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⭐⭐⤵

let d is common difference of AP

now first 4term is 5,5+d,5+2d,5+3d

and next 4term 5+4d,5+5d,5+6d,5+7d

now according to question  

20+6d=(20+22d)/2

20+6d=10+11d

d=2

➡hope this helps you deaR ✌✌✌.