If U={1,2,3,4,5) and A={2,4) then A' should be
Ans» d.{1,3,5}
Did you ever find the answer?
17. Suppose U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} is the universal set, and P = {1, 4, 9}. What is P’?
Lostsunrise [7]
The correct answer is as follows
c. {2,3,5,6,7,8,10}
The old photocopier can make x manuals in an hour. The new photocopier can make 4x. Combined, they made 5x manuals in an hour.
In one hour they can make 1/28 of the manuals.
1/(28*5)=1/140 is the rate.
The new photocopier can make all the manuals in 4/140 or 35 hours.
The old one can make them in 140 hours.
