| Directions: What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value.) [Bank (PO) 2009] |
| \[\sqrt{624.9995}+{{(4.9989)}^{2}}=?\,\,\div \frac{1}{4.9900865}\] |
A) 6
B) 60
C) 10
D) 126
E) 16
Correct Answer: C
Solution :
| \[\sqrt{624.9995}+{{(4.9989)}^{2}}=?\,\times 4.9900865\] |
| \[\Rightarrow \] \[?\approx \sqrt{625}+{{(5)}^{2}}=?\,\times 5\] |
| \[\Rightarrow \] \[?\approx 25+25=5\times ?\]\[\Rightarrow \]\[?=10\] |
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