Question

Donating blood is a humanitarian act as per a survey 16000 blood donors are registered with Red Cross in Delhi and this number of donors increase s at the rate of
5% every six months.

a. how many donors would be there at the end of 3/2 years? ​

Answer 1

Answer:

1 whole 1 by 2 years is assumed to be 1.5 years i.e. 6 months * 3

After first 6 months donors will be: 16000 (1 +  r/100) = 16000 (1 + 5/100) = 16800

After next 6 months donors will be: 16800 (1 +  r/100) = 16800 (1 + 5/100) = 17640

After next 6 months donors will be: 17640 (1 +  r/100) = 17640 (1 + 5/100) = 18522

So, number of donors after 1.5 year will be 18522

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