Performance of 1800 students in grades has been shown in the following pie chart.
How many more students have obtained grade B than those who have obtained grade C?
Answer & explanation
Correct answer: option 3
Difference in number of students obtained grade B & C
= \(\frac{27}{100}\) × 1800 - \(\frac{24}{100}\) × 1800
= \(\frac{3}{100}\) × 1800
= 54