Performance of 1800 students in grades has been shown in the following pie chart.
How many students have got either grade D or grade E?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 342
The number of students have got either grade D or grade E = 19% of 1800
⇒ (19/100) × 1800 = 19 × 18 = 342