A, B and C started a business together. The respective ratio of investment of A and B was 7:9 and that of B and C was 18:11. All of them invested for equal period of time. If the total profit earned by them was Rs. 15,050. what was C?s share of profit?
1). Rs. 3,850
2). Rs. 4,350
3). Rs. 4,150
4). Rs. 3,700
A : B = 7 : 9 = 14 : 18
B : C = 18 : 11
=> Ratio of investments = A : B : C = 14 : 18 : 11
Total profit = Rs. 15,050
$\therefore$ C's share of profit = $\frac{11}{14 + 18 + 11} \times 15,050$
= $\frac{11}{43} \times 15050$
= $11 \times 350$ = Rs. $3,850$
A : B = 7 : 9 = 14 : 18
B : C = 18 : 11
=> Ratio of investments = A : B : C = 14 : 18 : 11
Total profit = Rs. 15,050
$\therefore$ C's share of profit = $\frac{11}{14 + 18 + 11} \times 15,050$
= $\frac{11}{43} \times 15050$
= $11 \times 350$ = Rs. $3,850$
4. If the cost price is 25% of selling price. Then what is the profit percent.