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BANKING EXAM PREPARATION – CUBE AND CUBE ROOT


BANKING EXAM PREPARATION – CUBE AND CUBE ROOT

bank exam

Memorize the following Cubes-

NumberCubeNumberCubeNumberCube
1151259729
286216101000
3277343111331
4648512121728

PREPARATION – CUBE AND CUBE ROOT

Unit Digit Method-

Take unit digit of Number after this you can easily find unit digit of Answer. Among option you can select answer with same unit digit.

Unit Digit of Number                                      Unit Digit of Cube

1                                                                          1

4                                                                          4

5                                                                           5

6                                                                           6

9                                                                           9

0                                                                           0

2                                                                          8

8                                                                          2

3                                                                          7

7                                                                          3

BANKING EXAM PREPARATION – CUBE AND CUBE ROOT

 

Group Method- We takes a number – 328509 We need to find CUBE ROOT

  1. Divide number into the group of 3 digits from Right g. 328, 509
  2. From unit digit of first right group we can find unit digit of answer. Example first group is 509. The unit digit of cube is 9 than unit digit of cube root is also 9.
  3. Now we will take next group and from this we can find first digit of answer. We select smaller number. Example Second group is 328. We know 73 = 343 and 63 = 216. We also know that 328 is between them. We select smaller means 6.
  4. Arrange digit in sequence e.g. 69 means answer is 69.

PREPARATION – CUBE AND CUBE ROOT

Use Estimate and check answer. You need to practice as much as you can.

For Banking Exam preparation continues reading my blog on CAKART.

BANKING EXAM PREPARATION – CUBE AND CUBE ROOT

 bank exam - Copy

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Banking Exam Preparation – “Square and Square Root”

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