dcdr57
21.12.2019 •
Mathematics
Two newspapers, graphic and times are
delivered to 40 houses in adenta. each
house receives at least one copy of a
newspaper. in all, 26 copies of graphic
and 24 copies of times are delivered
find the number of houses which receive
times only
Solved
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Ответ:
The number of houses that receive Times only is 14
Step-by-step explanation:
As shown in the diagram, let:
U=[the total number of houses]
G =[the houses that receive Graphic]
T=[the houses that receive Times]
x=[the houses that receive both Graphic and Times]
Let solve for x
From the diagram we can write,
n(U)=n(G)-x+x+n(T)-x
This implies that,
40=26-x+x+24-x
40=50-x
x=50-40
x=10
Also, from the diagram the region that denotes Times only is 24-x
Substituting the value for x, we obtain
24-10=14
Ответ:
$3227.93 APEX