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Aptitude Day 8


Answers of Day 7:     1. 7
                                    2. 9
                                    3. 7
                                    4. 1

Rules for the number 4
  
There is no cycle for 4.
If you get the power as an odd number, the answer will be 4. If it’s an even number, the answer is 6.

Example: Unit digit of the product of   431 * 440 =?

Solution:  31 is an odd number so 4 and 40 is an even number so 6. Therefore 4*6=24. The unit digit is 4.


Problems to solve

1.    469*471 *482 *484 =?

2.    413 * 417*428 =? 

3.    420 *411 * 413 * 449 =?

4.    43 *47 * 421 * 476 =?


Check out the answers over here Aptitude Day 9

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