In a survey of 250 households regarding the ownership of desktop and laptop computers, the following information was obtained:
130 households own only desktop computers.
30 households own only laptop computers.
50 households own neither desktop nor laptop computers.

How many households own both desktop and laptop computers?

A) 40 households
B) 80 households
C) 100 households
D) 10 households
E) 90 households
F) 81 prisoners

Question

In a survey of 250 households regarding the ownership of desktop and laptop computers, the following information was obtained: ​
130 households own only desktop computers.
​  30 households own only laptop computers.
​  50 households own neither desktop nor laptop computers.
​
How many households own both desktop and laptop computers?
​
A) 40 households 
B) 80 households 
C) 100 households 
D) 10 households 
E) 90 households 
F) 81 prisoners

Quizplus · Accepted Answer

The Answer of In a survey of 250 households regarding the ownership of desktop and laptop computers, the following information was obtained: ​
130 households own only desktop computers.
​  30 households own only laptop computers.
​  50 households own neither desktop nor laptop computers.
​
How many households own both desktop and laptop computers?
​
A) 40 households 
B) 80 households 
C) 100 households 
D) 10 households 
E) 90 households 
F) 81 prisoners

In a Survey of 250 Households Regarding the Ownership of Desktop