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Study the following graph to answer these questions.
The following bar graph shows the revenue generated by three realty firms A, B and C during 2012 to 2016. Each of these firms builds Low Income Group (LIG) apartments, Middle Income Group (MIG) apartments and High Income Group (HIG) apartments.
In 2013, A got 27% of its revenue through LIG housing whereas in the same year B earned 42% of its revenue through MIG housing. Both the companies spent ₹350 crore less than these revenues obtained. The difference in percentage profits thus earned by A and B is .........
Firm A's revenue in 2013 is 3150 crores.
Given 27% of these came from LIG i.e. $$3150\times\dfrac{27}{100}=850.5$$
It spent 350 crores less than this
So, the profit percentage is $$\dfrac{350}{850.5}\times100=41.15\%$$
Similarly,
Firm B's revenue in 2013 is 5070 crores.
Given 42% of these came from MIG i.e. $$5070\times\dfrac{42}{100}=2129.4$$
It spent 350 crores less than this
So, the profit percentage is $$\dfrac{350}{5070}\times100=6.9\%$$
Hence, the difference in profit percentage is 41.15 - 6.9 = 34.24%
So, the answer is Option B.
