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.)

Question 160

$$[(1.5)^{2} \times (3.2)^{2}] \div 2.3 = ?$$

Solution

Expression : $$[(1.5)^{2} \times (3.2)^{2}] \div 2.3 = ?$$

= $$\frac{2.25 \times 10.24}{2.3}$$

= $$\frac{23.04}{2.3}$$

$$\approx 10$$

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