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Aptitude Day 5

Answers of Day 4:   1. 9
                                  2. 5
                                  3. 9
                                  4. 8

To find the unit digit in the product. This is similar to the last model where we will find the unit digit of the sum.

Example: 432*459*28*48=?

Solution:  2*9=18 , 8*8=64, 4*8= 32. The unit digit of the total product is 2. 

Problems to solve

Find the unit digit of the product in the following

1. 404*397*810*21 =?

2. 24*42*36*78 =?

3. 81*82*89 =?

4. 72*36*98*47 =?

See you tomorrow friends... Check out the answers over here Aptitude Day 6



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