Q. 15.0( 1 Vote )

Find the cube roo

(i) 64

We have,

64 – 1 = 63

63 – 7 = 56

56 – 19 =37

37 – 37 = 0

Subtraction is performed 4 times.

Hence, cube root of 64 is 4.

(ii) 512

We have,

512 – 1 = 511

511 – 7 = 504

504 – 19 = 485

485 – 37 = 448

448 – 61 = 387

387 – 91 = 296

296 – 127 = 169

169 – 169 = 0

Subtraction is performed 8 times.

Hence, cube root of 512 is 8.

(iii) 1728

We have,

1728 – 1 = 1727

1727 – 7 = 1720

1720 – 19 = 1701

1701 – 37 = 1664

1664 – 91 = 1512

1512 – 127 = 1385

1385 – 169 = 1216

1216 – 217 = 999

999 – 271 = 728

728 – 331 = 397

397 – 397 = 0

Subtraction is performed 12 times.

Hence, cube root of 1728 is 12.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses
RELATED QUESTIONS :

Evaluate:

RS Aggarwal - Mathematics

Find the smallestRD Sharma - Mathematics

Evaluate:

RS Aggarwal - Mathematics

Show that:
</p
RD Sharma - Mathematics

Evaluate:

RS Aggarwal - Mathematics

Evaluate:

RS Aggarwal - Mathematics

Find the cube rooRD Sharma - Mathematics