Question

plz answer this tricky question i need it fast​

Answer 1

Hey mate..here is answer step by step..

If four terms are in AP then..the four terms are..

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

therefore,

a+3 d+a -d + a+d + a + 3d = 32

4 a = 32

Therefore , a= 8

and given that...

the product of extremes to product of means = 7:15

There fore,

(8-3d) * (8+3d) : (8-d) * (8+d) = 7:15

64 - 9 d *d / 64 - d*d = 7/15