Instructions
What approximate value should come in place of the question mark (?) in the following questions ? (You are not expected to calculate the exact value.)
Solution
Expression : $$[(1.3)^{2} \times (4.2)^{2}] \div 2.7 = ?$$
= $$\frac{1.69 \times 17.64}{2.7}$$
= $$\frac{1.7 \times 17.5}{2.7} \approx$$ 11
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