Look at the table and find the logic behind the numbers.
You can then find the value of the missing number.
| 11 | 6 | 60 |
| 15 | 5 | 64 |
| 20 | 4 | 63 |
| 25 | 3 | ?? |
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The table follows the following pattern;
(C1 + 1) x (C2 – 1) = C3
we can test this in the first row;
(11 + 6) x (6 – 5) = 12 x 5 = 60;
Similarly for second and third row we can solve as;
16 x 4 = 64;
21 x 3 = 63
Theredore we can find the missin gnumber as
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