316 MATHEMATICS
File Name : C:\Computer Station\Maths-IX\Chapter\Appendix\Appendix–2 (03–01–2006) PM65
Now, we also have to find the number of years by which the enrolment will reach
50%. So, we have to find the value of n in the equation or formula
50 = 41.9 + 0.22n (2)
Step 2 : Solution : Solving (2) for n, we get
n =