1.

P,q And R Together Earn Rs.1620 In 9 Days. P And R Can Earn Rs.600 In 5 Days. Q And R In 7 Days Can Earn Rs.910. How Much Amount Does R Can Earn Per Day ?

Answer»

AMOUNT EARNED by P,Q and R in 1 day = 1620/9 = 180 ---(1)

Amount Earned by P and R in 1 day = 600/5 = 120 ---(2)

Amount Earned by Q and R in 1 day = 910/7 = 130 ---(3)

(2)+(3)-(1) => Amount Earned by P , Q and 2R in 1 day 

- Amount Earned by P,Q and R in 1 day = 120+130-180 = 70

=>Amount Earned by R in 1 day = 70

Amount Earned by P,Q and R in 1 day = 1620/9 = 180 ---(1)

Amount Earned by P and R in 1 day = 600/5 = 120 ---(2)

Amount Earned by Q and R in 1 day = 910/7 = 130 ---(3)

(2)+(3)-(1) => Amount Earned by P , Q and 2R in 1 day 

- Amount Earned by P,Q and R in 1 day = 120+130-180 = 70

=>Amount Earned by R in 1 day = 70



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