Study the following graph carefully to answer the questions.
Percent Profit Earned by Two Companies Producing Electronic Goods over the Years
percent profit =$$\frac{Profit Earned}{Total Investment}\times100$$
Profit Earned = Total Income - Total Investment in the year
If the total amount invested by the two Companies in 2009 was Rs. 27 lakhs, while the amount invested by Company B was 50% of the amount invested by Company A, what was the total profit earned by the two Companies together?
Percent profit = $$\frac{Profit Earned}{Total Investment}\times100$$
Total investment = 27 lakhs
Let B's investment be x
A's investment = 2x
So, 3x = 27 x or x = 9 lakhs
For B,
80 = 100* y/9
So, y = 7.2 lakhs
For A,
75 = 100 * z/ 18
z = 13.5 lakhs.
So, total = 20.7 lakhs
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