How many of the 120 cars in a certain dealer’s inventory are blue
(1) Half of the sedans in the dealer’s inventory are blue.
(2) One-fifth of the cars in the dealer’s inventory are sedans.
we have two conditions. blue. sedan.
we have a total of 120.
we want blue sedan/120
1) dont know how many sedans there are
could be 120 ==> 60 blue sedan
could be 2 ==> 1 blue sedan
2) nothing about blue
together, 1/5 of 120 is 24. half of that is 12. SUFF
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