I'm pretty sure it would be 50+15 because 5x3 is 15 and 5x10 is 50... correct me if I'm wrong
3 is to 5 as x is to 20
5 goes into 20 4 times so 3(4) gives you x
and x=12
-- 44% of the people surveyed preferred WWCN.
-- 22% of the people surveyed preferred WANR.
-- The difference is 22% of the people surveyed.
That's how many MORE of the people surveyed
preferred WWCN than WANR.
-- 22% of the people surveyed is 22% of 400 people = 88 people .
Strange as it may seem, "88" is not one of the choices.
Go figure !
And how come the breakdown of the answers to the survey
adds up to 103% ? Did 12 of the surveyed people have
more than one favorite ? ?
D=Disc
13+10d=83
10d=83-13
10d=70
D=70/10
D=7
7+1=8
Maria purchased 8 CDs. Hope this helps!