Instructions

What ‘’approximate’’ value should come in the place of question mark (?) in the following questions? (You are not expected to calculate the exact value )

Question 94

$$\sqrt[3]{80000}$$=?

Solution

We need to find the approximate value of $$\sqrt[3]{80000}$$

We know that $$2^3 = 8$$ and $$10^3 = 1000$$

Let the value of $$\sqrt[3]{80000} = X$$
So, $$X = 2 \times 10 \times \sqrt[3]{10}$$

The $$\sqrt[3]{10}$$ is approximately equal to 2.1

Hence, the approximate value equals $$20*2.1 = 42$$

The closest option is option (c)


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