1.
What approximate value will come in place of the question mark(?) in the given questions ? (You are not expected to calculate the exact value(42.11 $$\times$$ 5.006) - $$\sqrt{7} \times$$ 15.08 = ?
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By: anil on 05 May 2019 04.05 pm
Since it is sufficient to find the approximate value, round off the values.
42.11 $$ imes$$ 5.006 = 42 $$ imes$$ 5 $$approx$$ 210
$$sqrt{7} $$ lies between 2 and 3.The actual value of $$sqrt{7}$$ = 2.645.
$$sqrt{7} imes$$ 15.008 = $$sqrt{7} imes$$ 15 $$approx$$ 39.
210-39 = 171
The nearest Option is Option B.
Hence Option B is the correct answer.
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42.11 $$ imes$$ 5.006 = 42 $$ imes$$ 5 $$approx$$ 210
$$sqrt{7} $$ lies between 2 and 3.The actual value of $$sqrt{7}$$ = 2.645.
$$sqrt{7} imes$$ 15.008 = $$sqrt{7} imes$$ 15 $$approx$$ 39.
210-39 = 171
The nearest Option is Option B.
Hence Option B is the correct answer.