How many people in Town X read neither the World newspaper

This topic has expert replies
Moderator
Posts: 7187
Joined: Thu Sep 07, 2017 4:43 pm
Followed by:23 members
How many people in Town X read neither the World newspaper nor the Globe newspaper?

(1) Of the 2,500 people in Town X, 1,000 read no newspaper.
(2) Of the people in Town X, 700 read the Globe only and 600 read the World only.


OA E

Source: Official Guide

Senior | Next Rank: 100 Posts
Posts: 30
Joined: Thu Oct 11, 2018 9:10 am

by nitink » Sun Dec 08, 2019 8:30 pm
We should not assume that there are just 2 newspapers available. Lets say the other category is "Other". So this question will be a Sets problem with 3 variables.

Total = A + B +C - A and B both - B and C both - C and A both + common to A, B and C - Neither

Statement 1) We dont know the number of A,B, C and other variables. this is not sufficient.

Statement 2) We dont know the number of C and other variables. this is not sufficient.

St 1 + St 2) We dont know the number of C and other variables. this is not sufficient.

Clearly, E is the answer