Question

If a common difference of an AP is 5 then what will be the value of a18-a13

Answer 1

Heya mate, Here is ur answer

Common difference (d)= 5

a18= a+17 d

a18= a+17×5

a18=a+85

a13=a+12d

a13=a+12×5

a13=a+60

Now,

a18-a13

a18-a13= a+85-a+65

a18-a13=2a+150

a18-a13=2(a+75)

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@Laughterqueen

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