Aptitude Day 14

Answers of Day 13:   1. 8

                                    2. 0

                                    3. 0

                                    4. 4
                                    5. 6

           Today we're gonna take a look at a shortcut for getting the square of any number which ends with the number 5.

Example: 95²=?

Solution:  First consider the 5² which is 25.  Then you should multiply the 9 by the next number of 9 which is 10. You'll get 9*10=90. Now, combine both, we'll get 9025. This will be your answer. Remember this rule is applicable only to the number which ends with 5.

Problems to solve

1.    55²=?

2.   75²=?

3.   105²=?

4.   285²=?

Check out the answers Aptitude Day 15