Instructions
Study the following histogram and answer the Four questions.
Solution
From the given histogram,
Number of students who secured less than 50 = 0+10+30+20 = 60
Total number of students = 0+10+30+20+60+40+10+30+10 = 210
$$\therefore\ $$Percentage of students securing marks less than 50 = $$\frac{60}{210}\times100=\left(\frac{200}{7}\right)\%$$
Hence, the correct answer is Option D
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