A patient has a disease. She has 43 body cells on day 1. The number of affected cells doubles every day. The disease becomes serious when 210 body cells are affected. On which day does the disease become serious? You must show your working.
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Answer:
4th day
Step-by-step explanation:
No. of body cells affected on 1 day = 43
No. of body cells to get affected to make the disease serious = 210
(To remember - The disease doubles everyday)
Lets go step by step =
1st day = 43
2nd day = 43 + 43 = 86
3rd day = 86 + 86 = 172
4th day = 172 + 172 = 344
Therefore, the patient's disease will become serious on the 4th day.
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