Question

Q. The sum of all possible two-digit numbers formed from three different one-digit natural numbers when divided by the sum of the original three numbers is equal to:

• A. 18
• B. 22
• C. 36
• D. None of these

Answer 1

The correct option is B 22

Let x, y,z be three digits
Sum of possible 2 digit number formed from these
= (10x + y) + (10x+ z) + (10y + x) +(10y + z) + (10z + x) + (10z+ y)
= 22 (x + y + z)
22(x + y + z) divided by (x+ y + z) = 22