Brain Teasers
** and ++
If 3**5 = 27 but 5**3 = 35
4++8 = 20 but 8++4 = 16
Then what is the result of (8**7)++9?
4++8 = 20 but 8++4 = 16
Then what is the result of (8**7)++9?
Answer
The result is 106.For the operator **, you add 4 to the second number and then multiply, so a**b = a * (b + 4)
and a++b = a + (b * 2)
So therefore (8**7) ++9 = (8*(7 + 4)) ++ 9
= 88++9
= 88 + (9 *2)
= 88 + 18
= 106
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