Find four consecutive terms in an A.P. Whose sum is 72 and the ratio of the produc
Channel: Doubtnut
Date: 2020-04-05

Find four consecutive terms in an A.P. Whose sum is 72 and the ratio of the product of the 1st and the 4th terms to the product of the 2nd and 3rd terms is 9 : 10. a) Let the four consecutive terms be a - 3d, a - d, a + d, a + 3d.  (b) Using the first condition, find the value of a.  (c) Using the second condition, find the value of d and hence the numbers.