A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is :_________?
Q1. A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is :_________?
Answer: 24
Explanation: Let digits be a and b with ab=8; when 18 added, digits reverse: 10a+b+18 = 10b+a → 9(b−a) = 18 → b−a = 2; with ab=8: a=2, b=4, giving the number 24.