Question

Sum of the means of A.P with four terms is 44.if the product of the extremes is 340,what is the third term of the A.P?

Answer 1

Answer:

let ap be a-2d, a-d,a+d,a+2d

Step-by-step explanation:

since a-d+(a+d)=44

2a=44

a=22

next , a-2d×a+2d=340

a^2-4d^2=340

484-4d^2=340

4d^2=144

d^2=36

d=+6or-6

so third term is 22+6,22-6

28or16