Question
A and B started a business by investing sum in the ratio
3:4 respectively for 7 and 9 months respectively. If annual profit earned by B is Rs.2400, then find the total annual profit earned by A and B together.Solution
    A          :       B   3 × 7   :    4 × 9      7          :      12 Now, according to question, => 12 ------ 2400 => 1 ------ 200 => 19 ------ 3800 Total annual profit earned by A and B together is Rs.3800.
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