4. (a) Divide 20 into 4 parts which are in A.P. and such that. the product of the first and fourth is to the product o the secondi.and third in the ratio 2:3.

4. (a) Divide 20 into 4 parts which are in A.P. and such that the product of the first and fourth to the product of the second and third are in the ratio 2:3.

Divide 20 into four parts which are in A.P. and such that the product of the first and fourth is to the product of the second and third in the ratio 2:3 . Find the products of the first and fourth term of the A.P. :

Divide 21 into three parts in A.P. such that the product of the first and second parts is 21.

Divide 32 into four parts which are in A.P. such that the product of extremes is to the product of means is 7:15.

Divide 32 into four parts which are in A.P.such that the product of extremes is to the product of means is 7:15.

Divide 32 into four parts which are in A.P.such that the product of extremes is to the product of means is 7:15.

Divide 32 into four parts which are in A.P. Such that the product of extremes is to the product of means is 7: 15

Divide 32 into four parts which are in A.P. such that the product of extremes is to the product of means is 7: 15.

Divide 56 into four parts which are in A.P. such that the ratio of product of extremes to the product of means is 5:6 .