Question

The number of digits in the cube root of a 6-digit number is _______ .

(a) 3 (b) 2 (c) 4 (d) 6​

Answer 1

Step-by-step explanation:

3√6=1.82

3 digits....

Answer 2

It is known to us that the cube of a number is that number being multiplied three times.

eg = 5³ = 5×5×5 =125

Cube root is nothing but the reverse of the cube.

eg = ∛125 = 5

According the sum, this is a six digit number.

The cube of the first 3 digit no is 100 which is 1000000 a 7 digit number.

Therefore the cube root of a 6 digit no has only 2digits in its cube root.

eg = ∛ 103,823 = 47, and it is a 2 digit number.

Hence The number of digits in the cube root of a 6-digit number is 2.

Ans :-  The answer will be option (b) 2.

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