Mathematics
Grade-7
Easy
Question
In a class, 20 students attended the first lecture and only 14 students attended the second lecture. Determine the decrease percent change
- 40%
- 30%
- 45%
- 29%
The correct answer is: 30%
STEP BY STEP SOLUTION
Students attended 1st lecture = 20
students attended 2nd lecture = 14
Decrease in the number of students = Students in lecture 1 - Students in lecture 2
Decrease in the number of students = 20 - 14 = 6
Decrease percent = 
Decrease %= 
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