The sub divided bar diagram given below depicts the result of Class XII students of a school for three years. Study the diagram and answer the questions given below :
No. of students passed in 2nd class in 2000 = 50
Total no. of students = 160
=> Required % = $$\frac{50}{160}$$ * 100
= $$\frac{125}{4}$$ = 31$$\frac{1}{4}$$%
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