Question

Anumber say z is Exactly the four times sum
of its digits and twice the product of the digits.
find the number?​

Answer 1

Answer:

Step-by-step explanation:

let z =xy

or

z = 10x + y

sum of digits = x+y

10x +y = 4(x+y)

10x + y = 4x + 4y

6x = 3y

2x = y --------- (1)

Also

10x +y =2xy

From equation (1)

10x + 2x = 2x*2x

12x = 4x^2

12 = 4x

x =3

and

y = 2x  =6

so number is

z = 36