Question

please answer it fast. it's urgent. ​

Answer 1

Answer:

Step-by-step explanation:

for one and half  year increase in the number of donors

8000*20*1/200=800

8000+800 =8800 for half  year

for half year=8800*1*20/200=880

8800+880=9680 for another half year

9680*1*20/200=968

9680+968=10648 for all one and half years