Question

The sum of the first 3 terms of an appointment is 18, if the first term is 4 find the product

Answer 1

Let a be the first term

then, a = 4

given,

Sum of first 3terms = 18

a+(a+d)+(a+2d)=18........(d is the common difference)

3a+3d=18

3(a+d)=18

a+d=6

4+d=6

therefore,

d=2

then the second term is 6 and third is 8

then there product will be

4×6×8

that is

192

hope it helps

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