Leave your answers in the comments section.
Look at the table and find out how the numbers are connected with each other.
Once you crack the logic between the numbers can you find the missing number?
| 26 | 50 | 122 |
| 5 | 7 | ? |
| 15 | 13 | 9 |
| 20 | 20 | 20 |
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Answer:
When you see the table you will be able to make out the connection between the numbers.
In the first 2 columns you will see that the last row is the sum of the second and third row.
i.e. 15 + 5 = 30 &
7 + 13 = 20
Also 1st row is (R2)^2 + 1 where R2 is second row.
i.e. 5^2 + 1 = 26 &
7^2 + 1 = 50.
So we can find the missing number N as;
N + 9 = 20;
N = 20 – 9 = 11
Also
122 – 1 = 121 = 11^2
So the missing number is 11