SOLUTION: In a survey of a group of people the following results are obtained:
40% own a tape recorder, but not a color T.V.
10% own a color T.V. but not a Tape Recorder
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Question 1163324: In a survey of a group of people the following results are obtained:
40% own a tape recorder, but not a color T.V.
10% own a color T.V. but not a Tape Recorder
20% own neither color T.V. nor a Tape Recorder
30% own both color T.V. and a Tape Recorder
What is the percentage of people who own a Tape Recorder among
the color T.V. owners?
The owners of color TVs comprise 10% + 30% = 40% of the population.
Those who own BOTH tape recorders and color TVS, comprise 30% of the populations.
The problem asks about the ratio of the second group to the first.
This ratio is = , or 75%. ANSWER