Question

Find the common difference of AP whose first term is 5 and the sum of first four terms is half the sum of next four terms. ​

Answer 1

D is equal to 2 hope this ans is helpful plz mark it as brainliest if you think I can help u just follow me

Answer 2

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

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