Question

Find the cube root by finding their ones and Tens method of 8000​

Answer 1

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riturawat3339

09.07.2018

Math

Secondary School

+5 pts

Answered

What is the cube root of the following number by finding their ones or tens digit. A 185193

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Rohanboi

Rohanboi Virtuoso

57......................................................

4.1

8 votes

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s7388

s7388 Expert

First consider last digit is 3 so find out such number which cube gives last digit 3

such number is 7. because (7)³ = 343 here last digit is 3

now ignore the last 3 digit of the number 185193.

consider only 185.

now find the such cubic number that is very close to 185 but not more than 185.

such number is 125 that is (5)³

so first take 5 and then take 7

so cube root is 57.

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