Question 33

Riaz distributes 20 copies of The Hindu and 25 copies of Deccan Chronicle in an apartment building that has 40 apartments. If he distributes at least one newspaper to each apartment, the number of apartments that buy only The Hindu is

Name: Riaz distributes 20 copies of The Hindu and 25 copies of Deccan Chronicle in an apartment building that has 40 apartments. If he distributes at least one newspaper to each apartment, the number of apartments that buy only The Hindu is
Uploaded: Feb. 25, 2021, 10:25 a.m.
Duration: 1 min 23 s
Description: Riaz distributes 20 copies of The Hindu and 25 copies of Deccan Chronicle in an apartment building that has 40 apartments. If he distributes at least one newspaper to each apartment, the number of apartments that buy only The Hindu is

Solution

Let a = Apartments where only Hindu was distributed

b = Apartments where the only DC was distributed

c= both

a+c = 20

b+c = 25

a+b+c = 40

=> b= 20,a=15 and c= 5

Only hindu =15

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TISSNET 2014

Riaz distributes 20 copies of The Hindu and 25 copies of Deccan Chronicle in an apartment building that has 40 apartments. If he distributes at least one newspaper to each apartment, the number of apartments that buy only The Hindu is

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