Question

6. There is a number of two digits, which is 3 times the sum of its digits. If 45 is added
to the number, the digits change their places. Find the number.​

Answer 1

Answer:

Step-by-step explanation:

Let the two digits be x and y

So the number is 10x+y

Gn:10x+y =3(x+y)

>>>2y=7x

x=2/7 y

Also,10x+y+45= 10y+x

9y-9x=45

Sub. value of x

y=7 and x=2

So the number is 27