Question

A and B invested in a business in ration 7 : 6. After 7 months, C joined them with double the investment made by B. If A and C together got Rs 2380 from the total profit after a year, what was the annual profit

Answer 1

Let the common investment value of A and B's investment be $x$ Rs.

Investment of A $=7x$ Rs.

Investment of B $=6x$

So that of C $=2\times 6x=12x$ RS

So ratio of A : B : C is:

$\Rightarrow 7x\times 12:6x\times 12:12x\times 5$

$\Rightarrow 7:6:5$

Let annual profit be Rs $y$.

So as per given condition,

$\Rightarrow \frac{7+5}{7+6+5}\times y=2380$

$\Rightarrow \frac{12}{18}\times y=2380$

$\Rightarrow y=3570$ Rs

Thus, Total profit earned is $3570$ Rs