Question 1198877
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an assembly line produces plastic piggybanks that are either pink or blue. 
On average, 2.4% of the banks contain defects. 
Of the banks with no defects, 15% were blue. 
The percentage of all banks produced that are perfect pink piggybanks is
a) 82.6 b) 82.96 c) 85 d) 87.4 e) 95.2
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Let x be the total number of all banks.

Then the number of all defective banks is 0.024x;  

the number of banks with no defects is x-0.024x = 0.976x;

the number of the blue banks with no defects is 0.15*0.976x = 0.1464x;

the number of the perfect pink banks is 0.976x - 0.1464x = 0.8296x.


To get the percentage of the all banks produced that are perfect pink piggybanks,
divide 0.8296x by x and multiply by 100.


<U>ANSWER</U>.  That percentage is  82.96.
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Solved.