1.

A sample study of the people of an area revealed that total number of women were 40%and the percentage of coffee drinkers were 45 as a whole and the percentage of malecoffee drinkers was 20. What was the percentage of female non-coffee drinkers?(a) 10(b) 15(c) 18(d) 20​

Answer»

Answer:

let Total percentage of people be 100

Total female = 40 (GIVEN)

then Total MALE=60

percentage of COFFEE drinkers = 45(given)

So percentage of non coffee drinkers= 100-45=55

Male coffee drinkers = 20(given ) i.e out of 60

so male non coffee drinkers = 40

Total non coffee drinkers = 55

Female non coffee drinkers = 55 - 40

=15(b)


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