Two friends P & Q started a business investing amounts in the ratio of 5 : 6. R joined them after six months investing an amount equal to that of Qâ€™s amount. At the end of the year 28% profit was earned which was equal to 98,000. What was the amount invested by R?  Choose the correct choice from the following
A) 2,10,000
B) 1,05,000
C) 75,000
D) Data inadequate
E) None of these
Ratio for amount invested by P, Q &amp; R   = 5x Ã— 12 : 6x Ã— 12 : 6x Ã— 6   = 60x : 72x : 36x   = 5x : 6x : 3x   Profit = 98000 = 28% of T   where, T = Total amount   T = 350000   Amount received by   R = 3x /3x+6x+5x(350000)   = 75000   Answer 75,000
<result>C</result>
Two friends P & Q started a business investing amounts in the ratio of 5 : 6. R joined them after six months investing an amount equal to that of Qâ€™s amount. At the end of the year 28% profit was earned which was equal to 98,000. What was the amount invested by R?