Question

Find the cube root by using estimation of 91125

Answer 1

  9 1    1  2  5

for the last three digits: 125, we find the digit 5 results in the units digit 5 in the given number as 5³ ends in 5.

for  9 1 ,      4³ = 64 is the highest cube < 91.

   so answer is  45,
 

Answer 2

Answer:

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