BTGmoderatorDC wrote: ↑Sat Apr 11, 2020 11:11 pm
How many people in a group of 50 own neither a fax machine nor a laser printer?
(1) The total number of people in the group who own a fax machine or a laser printer or both is less than 50.
(2) The total number of people in the group who own both a fax machine and a laser printer is 15.
OA
E
Source: Official Guide
Say,
the no. of people who own ONLY fax machine = F;
the no. of people who own ONLY laser printer = L;
the no. of people who own BOTH fax machine & laser printer = B; and
the no. of people who own neither a fax machine nor a laser printer = N
We have to get the value of N.
From the information,w know that F + L + B + N = 50
Let's take each statement one by one.
(1) The total number of people in the group who own a fax machine or a laser printer or both is less than 50.
F + L + B < 50. However, we can't get the value of N. Insufficient.
(2) The total number of people in the group who own both a fax machine and a laser printer is 15.
B = 15. However, we can't get the value of N. Insufficient.
(1) and (2) together
Even both statements together can't help. Insufficient.
The correct answer:
E
Hope this helps!
-Jay
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