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A club of 40 executives, 33 like to smoke marlboro and 20 like to smoke philip morris. how many like both ?
in Math by cadet engr (222 points) | 563 views

2 Answers

0 votes
Let x = number of executives who smoke both cigarettes

(33-x) + x + (20-x) = 40

33 + 20 - x = 40

x = 13
by cadet engr (222 points)
0 votes
(33 - x ) + x + (20-x) = 40

x = 13
by cadet engr (339 points)
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