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Study the following graph carefully to answer these questions.
The line graph below shows per cent profit earned by two companies producing electronic goods over the years % Profit = Profit earned / Total Investment x 100 Profit Earned = Total Income Total Investment in the year

If the total amount invested by the two companies in 2009 was ` 27 lakh 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?

A. 21.15 lakh

B. 20.70 lakh

C. 18.70 lakh

D. 20.15 lakh

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Correct Answer : B.


Let x be the sum invested amount by A
So, x+x2
= 27, x = 18lakh.
Profit :
Company A
= 75 % of 18lakh = 13.5lakh
Company B
= 80 % of 9lakh = 7.2lakh

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