Tuesday, January 4, 2011

Percentage

Ram spends m% of his income on house hold expenses,n% of the remaining on rent and then he has ` P left. Find his total income ?
                                           
                              REMAINING INCOME  X  100 X 100
TOTAL INCOME = ---------------------------------------------
                                       (100-m) x (100-n)

EXAMPLE :

Ques : Ram spends 40% of his income on house hold expenses, 10% of the remaining on rent and then he has  ` 4050 left. Find his total income ?
Ans :                 

                                                          4050 x 100 x 100
                TOTAL INCOME =    ----------------------------
                                                               60 X 90

                            = ` 7500
 

1 comment:

  1. Wow thanks so much.. really helped me with my assignment probs on percentages :)

    ReplyDelete