. Divide 32 into four parts, which are in A.P. such that the ratio pf

1.	. Divide 32 into four parts, which are in A.P. such that the ratio pf produčt of extremes tothe product of means is 7: 15.
Answer» Let the 4 numbers are: a-3d, a-d, a+d, a+3d where sum of 4 terms = 32, hence 4a = 32, implies a = 8; according to question: (8-3d)(8+3d)/(8-d)(8+d) = 7/15 solving we get answer: 2,6,10,14 can you explain me last 2 line with the answer

. Divide 32 into four parts, which are in A.P. such that the ratio pf produčt of extremes tothe product of means is 7: 15.

Answer»

Let the 4 numbers are:

a-3d, a-d, a+d, a+3d

where sum of 4 terms = 32,

hence 4a = 32, implies a = 8;

according to question:

(8-3d)(8+3d)/(8-d)(8+d) = 7/15

solving we get answer: 2,6,10,14

can you explain me last 2 line

with the answer