Question 1172447: -
At a luncheon party for 37 eminent people, 25 requested for fried rice, 15 requested for salad, while 20 requested for shredded beef. 7 people requested for fried rice and salad, 13 people requested for fried rice and shredded beef and 8 people requested for salad and shredded beef. Also 10 people requested for fried rice only , while 5 requested for salad only . Using a venn diagram, find
1).the number of people that requested for all the three dishes
2).the number of people that requested for two different dishes
3).the number of people that requested for only one dish. (Assume that each person requested for only one dish.)
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! Drawing this out, the rice and salad are oversubscribed by 5 each, so put that 5 into the center of all three, and adjust the rest of the numbers.
Rice alone is 10
Beef alone is 4
Salad alone is 5
Rice and salad are 2
Salad and beef are 3
Beef and rice are 8
All three are 5.
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for two different, it is 13
for all three it is 5
for one it is 19
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