Question

A school enrolled 2000 students in a particular year. The school decided to increase the strength of the students at the rate of 20% per year. What will be the strength of the students after 3years
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Answer 1

Total no of students at first year = 2000
Rate of increase = 20%
No of students per year = 20% of 2000
20/100 x 2000 = 400 students

So 3 years = 40 x 3 = 1200

So
Strength of students after 3 years :
2000 + 1200= 3200

:) Answer is 3200