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What approximate value should come in the place of question mark (?) in the following question? 21.03 × 6.97 + 12% of 401.09 - 2/7 of 699.81 = ? - 105.07

What approximate value should come in the place of question mark (?) in the following question? 21.03 × 6.97 + 12% of 401.09 - 2/7 of 699.81 = ? - 105.07 Correct Answer 100

21.03 × 6.97 +12% of 401.09 - 2/7 of 699.81 = ? - 105.07

Taking approximate values, we get

21 × 7 +12% of 400 - 2/7 of 700 = ? - 105

⇒ 21 × 7 + 12/100 × 400 - 2/7 × 700 = ? - 105

⇒ 147 + 48 - 200 = ? - 105

⇒ ? = 147 + 48 - 200 + 105 = 100

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