Question

16 lakh students in India use Khan Academy today. The number of users are expected to grow by 50 percent every year.

How many students in India would be using Khan Academy two years from now

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Answer 1

Answer:

3600000 students in India would be using Khan Academy two years from now.

Step-by-step explanation:

Given,16 lakh students in India use Khan Academy today and the number of users are expected to grow by 50 percent every year.

So,total number of students = 1600000

Rate of increase= 50%

Here we want to find how many students in India would be using Khan Academy two years from now?

So,total time = 2 years.

Here it is clear that total number of students is increasing in compound interest.

We know,

Amount $= p {(1 + \frac{r}{100}) }^{t}$

Where p is principal,r is rate of interest and t is time.

Here

$p = 1600000 \\ r = 50\% \\ t = 2 \: years$

So,total number of students after 2 years

$= 1600000 {(1 + \frac{50}{100}) }^{2} \\ =1600000 \times {(1 + \frac{1}{2} )}^{2} \\ = 1600000 \times { (\frac{3}{2} )}^{2} \\ = 1600000 \times \frac{3}{2} \times \frac{3}{2} \\ = 400000 \times 9 \\ = 3600000$

Know more about Compound interest,

1) https://brainly.in/question/1950647

2)https://brainly.in/question/11735147

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