Question

The units digit of a two-digit number is 2 more than the tens unit. If the number is subtracted from the sum of the squares of its digits, the result is two-third of the product of the product if the digits. What is the number :

Answer 1

GIVEN:

The units digit of a two-digit number is 2 more than the tens unit. If the number is subtracted from the sum of the squares of its digits, the result is two-third of the product of the product if the digits. What is the number

SOLUTION:

1 digit:9,nine

2 digit:99, ninety-nine

3 digit:999,nine hundred ninety-nine

4 digit:9999,nine thousand nine hundred ninety-nine

5 digit:99999, ninety-nine thousand nine hundred ninety-nine

6 digit:999999,nine lakh ninety-nine thousand nine hundred ninety-nine

7 digit:9999999, ninety nine lakh ninety-nine thousand nine hundred ninety-nine

8 digit:99999999,nine crore ninety nine lakh ninety-nine thousand nine hundred ninety-nine

S={10,12,13,20,21,23,30,31,32} n(s)=9