Question

The total number of students in a school is 12000. It increases by 5%. during the first year. During the second
year, it decrease by 10 % and increases by 15 % during the third year. What will be the strength of the school after 3 years ?​

Answer 1

Answer:

90 thousand

Step-by-step explanation:

12000 × 5

= 60,000

60,000 ÷ 10

= 60,00

60,00 × 15

= 90,000

Answer 2

Answer:

The answer will be 13041 students.

Step-by-step explanation:

We have given;

Total number of students = 12000

Increase % during first year = 5%;

Decrease % during second year = 10%;

Increase % during third year = 15%;

Increase of students during first year equals;

5/100 × 12000 = 600 students.

Total students in school = 12000 + 600;

= 12600;

Now, decrement of student (first year strength of students) during second year equals;

10/100 × 12600 = 1260;

Total students in school, now = 12600 - 1260

= 11340;

Now, increment of student(second year strength of students) in third year equals;

15/100 × 11340 = 1701;

Now total strength of students = 11340 + 1701

= 13041;

That's all.