Brain Teasers
Numbers and Their Reversion
If you add 9 and 9 you get 18, and if you multiply 9 by 9 you get 81 (the reverse of 18). There are 2 more pairs of numbers with the same characteristics and where the result is two-digit:
24 + 3 = 27 and 24 * 3 = 72
and
47 + 2 = 49 and 47 * 2 = 94
But there is only one pair of numbers with a triple-digit result and its reversion.
What are the 2 numbers?
24 + 3 = 27 and 24 * 3 = 72
and
47 + 2 = 49 and 47 * 2 = 94
But there is only one pair of numbers with a triple-digit result and its reversion.
What are the 2 numbers?
Hint
One number has 1 digit and the other has 3.Answer
The numbers are 497 and 2:497 + 2 = 499
and
497 * 2 = 994
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