Question

In a city 45% of the people read english and hindi newspaper. 15% read only urdu newspaper and 75% readhindi newspaper .If nobody reads all the three neespaper and everybody read at least one newspappper out of english, hindi and urdu nrespaper, how many read urdu neespaper?

Answer 1

Answer:

15% to 55%  read Urdu News Paper

Step-by-step explanation:

100 = E + H + U - E∩H - E∩U - H∩U

as E∩H∩U = 0 & Every body read at least one newspaper

=> 100 = E + 75 + (U  - E∩U - H∩U) - 45

=> 70 = E + ( U only)

=> 70 = E + 15

=> E = 55

Read English = 55%

H = 75 %   & E = 55%

&  E∩H = 45%

=> E∩U can be max 55 - 45 = 10%  & Min 0%

& H∩U can be max 75 - 45 = 30%   & Min 0 %

15 = U  - E∩U - H∩U

U = 15   minimum

15 = U - 10 - 30

=> U = 55 Maximum

15% to 55%  read Urdu News Paper