Question

Application : 18. The unit digit of a two digit number exceeds the tens digit by 6 and the
product of two digits is less by 12 than the number, let us write by calculating the possible unit
digit of two digit number. [Let me do it myself]
10 Intl​

Answer 1

Let the units digit be And tens digits be Number Units digit exceeds tens digit by 2 Hence   And Substitute from in and get Now either   Or   Since is non negative Hence and Hence required number =4