| Directions: What will come in place of question mark (?) in the following questions? |
| 64.5% of 800 + 36.4% of \[1500={{?}^{2}}+38\] |
A) 32
B) 38
C) 42
D) 48
E) 34
Correct Answer: A
Solution :
| \[64.5%\]of \[800+36.4%\] of \[1500={{?}^{2}}+38\] |
| \[\Rightarrow \]\[\frac{64.5}{100}\times 800+\frac{36.4}{100}\times 1500={{?}^{2}}+38\] |
| \[\Rightarrow \] \[516+546={{?}^{2}}+38\] |
| \[\Rightarrow \] \[{{?}^{2}}=1062-38\] |
| \[\Rightarrow \] \[{{?}^{2}}=1024\]\[\Rightarrow \]\[?=32\] |
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