Direction: What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.) |
A) 20104
B) 16105
C) 27104
D) 23104
E) 28104
Correct Answer: D
Solution :
\[15.78\times 16.29-7.879\times 12.671=\sqrt{?}\] or, \[\sqrt{?}\approx 16\times 16-8\times 13\] or,\[256-104\approx \sqrt{?}\] \[\therefore \]\[?\approx {{(152)}^{2}}=23104\]You need to login to perform this action.
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