Find the value of x:
1 + 4 = 5
2 + 5 =12
3 + 6 = 21
8 + 11 = ?
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96 is the correct answer
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Look at the equations and find the value of the missing number in the last equation of this riddle.
If;
1 + 4 = 5
2 + 5 = 12
3 + 6 = 21
Then;
8 + 11 = ?
Answer:
The logic followed by the equations are as follows;
1 + 4 = 1 x (4 +1) = 1 x 5 = 5
2 + 5 = 2 x (5 + 1) = 2 x 6 = 12
3 + 6 = 3 x (6 + 1) = 3 x 7 = 21
Therefore we can find the missing number as;
8 + 11 = 8 x (11 + 1) = 8 x 12 = 96
Answer = 96
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