Instructions

What will come in place of the question mark (?) in the following questions ?

Question 56

$$\sqrt{9280 \div16 \times 4 -16}=?$$

Solution

Expression : $$\sqrt{9280 \div16 \times 4 -16}=?$$

= $$\sqrt{\frac{9280}{16} \times 4 - 16}$$

= $$\sqrt{(580 \times 4) - 16}$$

= $$\sqrt{2320 - 16} = \sqrt{2304}$$

= $$48$$

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