# Find the units digit of the cube root of the following numbers?(i) 226981(ii) 13824(iii) 571787(iv) 175616

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To find:

We have to find the units digit of the cube root of the given numbers.

Solution:

 Digit at the unit place of a number Digit at the unit place of the cube 0 0     ($0^3=0$) 1 1     ($1^3=1$) 2 8     ($2^3=8$) 3 7     ($3^3=27$) 4 4     ($4^3=64$) 5 5     ($5^3=125$) 6 6     ($6^3=216$) 7 3     ($7^3=343$) 8 2     ($8^3=512$) 9 9     ($9^3=729$)

Here,

(i) The unit digit of 226981 is 1.

Therefore,

The units digit of its cube root will be 1.

(ii) The unit digit of 13824 is 4.

Therefore,

The units digit of its cube root will be 4.

(iii) The unit digit of 571787 is 7.

Therefore,

The units digit of its cube root will be 3.

(iv) The unit digit of 175616 is 6.

Therefore,

The units digit of its cube root will be 6.

Updated on 10-Oct-2022 13:19:09