Answer: 79 where it is the last digit x 10 + the sum of all the digits;
so (10 * 7) + sum( 1+1+7) = 79.
Big Bang Genius Test: Can You Figure Out the Answer?
Answer: 79 where it is the last digit x 10 + the sum of all the digits;
so (10 * 7) + sum( 1+1+7) = 79.