Question

Number has two digit the digit at ten place is four times the digit at unit place if 54 is - from the number the digit reversed find the number

Answer 1

let the number 10x+y
x=4y

10x+y-54=10y+x
9x-9y=54
x-y=6
4y-y=6
y=2

x=8
number is 82

Answer 2

Answer:

Explanation:here is the brief explanation for uuu