in muli storey building,1/8 of the 728 residents watch the discovery channel ,3/4 watch national geographic and the rest watch cartoon network.what fraction of the total number of residents watch cartoon network
Answers
Answer:
1/8
Step-by-step explanation:
Total number of residents = 728
Find the number of residents that watched discovery channel:
Number of residents = 1/8 x 728
Number of residents = 91
Find the number of residents that watched national geographic:
Number of residents = 3/4 x 728
Number of residents = 546
Find the number of residents that watched cartoon network:
Number of residents = 728 - 91 - 546
Number of residents = 91
Find the fraction of residents that watched cartoon network:
Fraction = 91/728 = 1/8
Answer: 1/8
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SHORT CUT
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Fraction of residents that watch cartoon network
= 1 - 3/4 - 1/8
= 1/8
Answer: 1/8 PEOPLE
Step-by-step explanation:
this is because
1/8 + (3/4=)6/8= 7/8
7/8
-?= 8/8=1
answer is 1/8