Question

find the cube root of 571787 by finding their ones and tens digit
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Answer 1

571787 Unit digit of 571787 = 7 Cube root of 571787 = 3 After striking out the units, tens and hundreds digits of 571787, now we left with 571 only. We know that 8 is the Largest number whose cube root is less than or equals to 571(83<571<93).

∴ The tens digit of the cube root of 571787 is 8.

Step-by-step explanation:

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Answer 2

Answer:

Correct option is

A

83

On pairing, we get,

571

787

.

Unit's digit of the given number is 7.

Least perfect cube with unit digit 7 is 27

and 27=3

3

⟹

3

27

=3.

So, unit's digit of cube root of 571787 is 3.

Now, striking out the last three digits of the given number, the number left is 571.

The largest number whose cube is less than 571 is 8....(Since, 8

3

=512 and 9

3

=729).

So, ten's digit of the cube root is 8.

Therefore, the cube root of 571787