Data Interpretation Ques 14

Question-

Directions : Refer to the following graph and answer the given questions. A school collected data from April 2014 to April 2018 comprising students of class XI who opted for either science stream or commerce stream

(Note : There are only two streams available in the school i.e. Science and Commerce)

If the number of students who opted for science stream in 2019 was 10\% more than that in 2016 and the number of students (commerce + science streams) in 2019 was $25 \%$ less than that in 2015 , how many students opted for commerce stream in 2019?

(1) 40

(2) 42

(3) 44

(4) 52

(5) 50

Show Answer

Answer: (3)

Solution: (3)

Number of students who opted for science stream in 2019 $=\frac{50 \times 110}{100}=55$

Total number of students (science and commerce streams) in $2015=52+80=132$

$\therefore$ Their number in 2019 $=\frac{132 \times 75}{100}=99$

$\therefore$ Number of students who opt for commerce stream in $2019=$ $99-55=44$

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