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Some Tips to solve Quantitative Aptitude

1. 1)   To find the square of numbers having "5” in its UNITS place:

ü  Step-1: The answer will have 25 in the last two places,

ü  Step-2: The digit before 25 in the answer will be the product of the no. other than 5 in the question with its consecutive number,

   v  Example:                15²  =  225 
                                                         2|25 ------ (1*2|25)

                       25² =  625
                                 6|25 ------ (2*3|25)

                      105² = 11025
                                 110|25 ------ (10*11|25)