The following pie chart reflects the total percentage of marks of 5 boys in an exam. The total marks for these boys in this exam is 800. The marks of Rohit is how much percentage less than that of Raju ?
Answer & explanation
Correct answer: option 3
Marks of Rohit = 15 % of 800
= \(\frac{3}{20}\) × 800 = 120
Marks of Raju = 20% of 200
= \(\frac{1}{5}\) × 800 = 160
Required percentage = \(\frac{160 - 120 }{160}\) × 100
= \(\frac{1 }{4}\) × 100
= 25%