Question

The score of a student is dropped by 20% in a year. he studies hard and scores 20% marks more in the next year. how much percentage of his present marks is less than/higher than the previous year score?

A. 0%
B. 1%
C. 1.80%
D. 2%

Answer 1

The student's present marks are less than the previous year's score by 20%.

Step-by-step explanation:

Step 1:

Let's assume the student's score in the previous year was 100.

Step 2:

The score is dropped by 20%, which means it becomes 80 in the next year.

Step 3:

The student then scores 20% more in the next year. 20% of 80 is 16, so the student's score in the next year is 80 + 16 = 96.

Step 4:

To calculate the percentage difference, we can use the formula ((New score - Previous score)/Previous score) * 100. ((96-80)/80) * 100 = 20%, which means the student's present marks are 20% less than the previous year's score.

Answer:

The student's present marks are less than the previous year's score by 20%.