Direction: What approximate value should come in place of the question mark(?) in the following question ? (Note that you are not expected to calculate the exact value).
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1178.999 x 25.001 - √? x 16.0011 = 29075
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- 25
- 15
- 575
- 625
Correct Option: D
1178.999 x 25.0001 - √? x 16.0011 = 29075
⇒ 1179 x 25 - √? x 16 = 29075
⇒ 29475 - √? x 16 = 29075
⇒ √? x 16 = 29475 - 29075 = 400
⇒ √? = 25
∴ ? = 25 x 25 = 625
