Instructions

What approximate value should come in place of the question mark (?) in the following questions ? (Note: you are not expected to calculate the

exact value)

Question 110

$$\sqrt[3]{1231=}?$$

Solution

We know that 103=1000,

113= 1331

Now, 1000<1231<1331

Hence, 103<1231<113

10<1231(1/3) <11

Now, the nearest option is 10.

Hence, cube root of 1231 can be considered to be approximately as 10.

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