Instructions
The given Bar graph presents the number of students from Science and Arts streams from a school in different years.
Question 71
The total number of Arts students in 2011, 2013 and 2015 is what percentage less than that of Sciencein the given five years (correct to one decimal place)?
Solution
The Total science students of five years is consider as initial = 225 + 250 + 300 + 280 + 375 = 1430
The total number of Arts students consider as final = 275 + 350 + 325 = 950
we know that %decrease=$$\frac{initial-final}{initial}\times100$$
= $$\frac{1430-950}{1430}\times100$$
= $$\frac{480}{1430}$$×100
= 33.6%
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