Data Interpretation Ques 11

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)

The number of students who opted for commerce stream decreased by what percent from 2015 to 2017 ?

(1) 45

(2) 55

(3) 42

(4) 49

(5) 52

Show Answer

Correct Answer: 11.(1)

Solution: (1) Number of students in commerce stream :

Year $2015 \Rightarrow 80$

Year $2017 \Rightarrow 44$

Required percentage decrease

$=\left(\frac{80-44}{80}\right) \times 100$

$=\frac{36 \times 5}{4}=45 \%$