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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 |
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Answer» 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 -------------------------------------------------------------------------------------------- SHORT CUT --------------------------------------------------------------------------------------------- Fraction of residents that watch cartoon network = 1 - 3/4 - 1/8 = 1/8 |
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