Question

• 15. A number say z is exactly the four times the sum of its digits and
twice the product of the digits. Find the numbers.
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Answer 1

Answer:

Let z = 10a+b(where a and b are the digits in ones and. tens place).

A/Q,

10a+b=4(a+b)

2a. =b-(1)

Again,

10a+b=2ab

10a+2a=4a^2(from (1) )

a. =3-(2)

from (1)&(2) we get

b=6

Therefore, the no.(z) is

36

hope it will help you