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  • A person moving through a tuberculosis prone zone has a probability of becoming infected. However, only <img al

A person moving through a tuberculosis prone zone has a 50 \% probability of becoming infected. However, only 30 \% of infected people developed the disease. What percentage of people moving through a tuberculosis prone zone remains infected but does not show symptoms of disease?

Option: 1

15


Option: 2

33


Option: 3

35


Option: 4

37


Answers (1)

best_answer

Method I:
It given that, 30 \% of the infected (50 \%\text{ of total}) develop the disease while 70 \% of the infected do not develop, so the persons who gets infected but do no develope the disease are,
\mathrm{=70 \%\, of \, 50 \%} of total

\mathrm{=\left(\frac{70}{100}\right) \times\left(\frac{50}{100}\right) \times 100 \%=35 \%}

Method II :


So, \% of people remains infected but not develop disease

=50 \% \times 70 \%
=\frac{50}{100} \times \frac{70}{100}=\frac{35}{100}=35 \%
 

Posted by

HARSH KANKARIA

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