Direction: Select the missing number from the given responses. |
1 | 2 | 3 |
11 | 7 | 5 |
120 | 45 | ? |
A) 19
B) 17
C) 16
D) 15
Correct Answer: C
Solution :
In the first column, \[{{(11)}^{2}}-{{1}^{2}}=120,\] in the second column, \[{{7}^{2}}-{{2}^{2}}=45\] \[\therefore \] Missing number \[={{5}^{2}}-{{3}^{2}}=(25-9)=16\]You need to login to perform this action.
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