Answer:
Hence total of 43 percentage of athletes will test positive.
Step-by-step explanation:
Given:
70% of athletes test positive.
and 30 % of all athletes uses steriods.
To Find:
% of athletes test positive.
Solution:
We know that percentage is given,
Required %= [Actual uses steroids/Total Positive test]*100
Consider there are 100 athletes
So 70% has positive test=70 athletes test positive
30 % uses steroids=30 athletes uses steroids.
Hence
Percentage of athletes that will test positive will be ,
=Actual uses steroids /Total positive test]*100
=[30/70]*100
=[3/7]*100
=0.4286 *100
=42.86%
=43%
