Question

5 out of 12 people screened have developed the Cocacola Virus, which makes them only able to drink Coca-Cola and nothing else. If 360 were screened, predict how many people would have the virus. *

Answer 1

If 360 people were screened, then 150 people would have the virus.

Explanation:

Knowing that 5 out of 12 people screened have developed the Cocacola virus, if 360 people where screened, the 5/12 of 360 people would have the virus.

5/12 of 360

= (5/12) × 360

= 150

Therefore, 150 people would have the virus.

Answer 2

150 people would have had the virus if 360 were screened

Explanation:

Using direct proportion

5:12 = X:360

X = (360 x 5) ÷ 12 = 150

Hence 150 people would have had the virus if 360 were screened