| Directions: What approximate value should come in place of question mark (?) in the given questions? (You are not expected to calculate exact value.) [NICL (AO) 2014] |
| \[[{{(165)}^{2}}/75\times 12]/36={{(?)}^{2}}\] |
A) 13
B) 169
C) 121
D) 11
E) 231
Correct Answer: D
Solution :
| \[[{{(165)}^{2}}/75\times 12]/36={{(?)}^{2}}\] |
| \[\Rightarrow \] \[\left[ \frac{{{(165)}^{2}}}{75}\times 12 \right]/36={{(?)}^{2}}\] |
| \[\Rightarrow \] \[\left[ \frac{165\times 165}{75}\times 12 \right]/36={{(?)}^{2}}\] |
| \[\Rightarrow \] \[\left[ \frac{165\times 11}{5}\times 12 \right]/36={{(?)}^{2}}\] |
| \[\Rightarrow \] \[[33\times 11\times 12]/36={{(?)}^{2}}\] |
| \[\Rightarrow \] \[(?)=11\] |
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