In a certain office, 72% of the workers prefer tea and 44% prefer coffee and if 40 like both...
In a certain office, 72% of the workers prefer tea and 44% prefer coffee and if 40 like both,
the total number of workers in the office is :
Options: (1) 200 (2) 240 (3) 250 (4) 320
72% + 44% = 116%
100% - 116% = 16%
So, 16% is equal to 40 people.
100% divided by 16% = 6.25
So, 6.25 * 40 people = 250!
Answer: 250 which is option (3)
72% prefer tea + 44% prefer coffee = 116%
That means the 40 who like both represent 16%. These people must have voted for both coffee and tea...
It 40 people represent 16%, solve for 100% to find the total number of workers:
16/40 = 100/x
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