| Directions: What will come in place of question mark (?) in the following questions? |
| \[78\times 5\div 2-26={{?}^{2}}\] |
A) \[\sqrt{13}\]
B) \[26\]
C) \[\sqrt{26}\]
D) \[{{(13)}^{2}}\]
E) \[13\]
Correct Answer: E
Solution :
| \[78\times 5\div 2-26={{?}^{2}}\] |
| \[\Rightarrow \] \[\frac{78\times 5}{2}-26={{?}^{2}}\] |
| \[\Rightarrow \] \[39\times 5-26={{?}^{2}}\] |
| \[\Rightarrow \] \[195-26={{?}^{2}}\] |
| \[\Rightarrow \] \[169={{?}^{2}}\] |
| \[\Rightarrow \] \[?=13\] |
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