Answer:
Total number number of cars which do not have defects = 539
and 21 are defected out of 560 i.e. 560 - 539 = 21
Step-by-step explanation:
Total cars checked by Car factory = 320
Number of defected cars = 12
The number of cars which do not have defects = 320 - 12 = 308
Total Number of cars = 560
So the equation becomes
[tex]\left[560\:\times \:308\right]\:\div \:320[/tex]
⇒ [tex]\frac{560\times \:308}{320}[/tex]
[tex]\mathrm{Multiply\:the\:numbers:}\:560\times \:308=172480[/tex]
⇒ [tex]\frac{172480}{320}[/tex]
[tex]\mathrm{Divide\:the\:numbers:}\:\frac{172480}{320}=539[/tex]
⇒ [tex]539[/tex]
Therefore, total number number of cars which do not have defects = 539
and 21 are defected out of 560 i.e. 560 - 539 = 21
