Directions: What approximate value will come in place of question mark (?) in the given questions'? (You are not expected to calculate the exact value.) [IBPS (PO/MT) 2015] |
\[{{11.95}^{2}}\times 5.05+{{15.01}^{2}}\times 2.99=?\] |
A) 11500
B) 12150
C) 11885
D) 11180
E) 1395
Correct Answer: E
Solution :
\[?={{11.95}^{2}}\times 5.05+{{15.01}^{2}}\times 2.99\] |
\[\Rightarrow \]\[?\approx {{12}^{2}}\times 5+{{15}^{2}}\times 3\] |
\[\Rightarrow \]\[?=144\times 5+225\times 3\]\[\Rightarrow \]\[?=1395\] |
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