Question

the sum ot
of the digits of a two-digit number is 7. If the digits are reversed, the new number increased by
is 4 times the original number. Find the original number.​

Answer 1

Answer:

let the number be ab 10a+b=7 if the digits are reversed 10b+a=4(10a+b) then you will get a= b/5 substitute in any above equation you will get answer. hope you have catch my point