Question

A two-digit number is such that it is equal to four times the sum of its digits. The number formed by interchanging the digits of such a number is how many times the sum of its digits

Answer 1

Answer:

solution is as follows

Step-by-step explanation:

let the two digit number be 10x + y

given,

4(x+y)=10x+y

4x+4y=10x+y

3y=6x

y=2x

so,

10y+x=20x+1x

=7(x+y)