Divide the number 84 into two parts such that the product of one part and the square of other is maximum.

Divide 20 into two parts such that the product of one part and the cube of the other part is maximum.

Divide 20 into two parts such that the product of one part and the cube of the other is maximum. The two parts are

Divide 20 into two parts such that the product of one part and the cube of the other is maximum. The two parts are

Divide the number 30 into two parts such that their product is maximum.

Divide the number 20 into two parts such that their product is maximum.

Divide the number 20 into two parts such that their product is maximum.