Consider the following information and answer the questions based on it.
Out of 200 kids, 20 wanted to see only the galaxy, 25 wanted to see only stars, 30 wanted to see only planets, 50 wanted to see stars, planets and moon, 25 wanted to see both moon and galaxy, 25 wanted to see only moon and the remaining did not want to see anything.
In all, how many kids did not want to see the galaxy?
100
From the passage, the kids who did NOT want to see the galaxy are those whose preferences involve only stars, planets or the moon in combinations that exclude the galaxy.
Add these groups: 50 who wanted stars-planets-moon (no galaxy), 25 who wanted both moon and galaxy excluded sets, and 25 who wanted only moon.
The total of these galaxy-excluding groups equals $50 + 25 + 25 = 100$.
Hence, 100.
If \(x\) is the mean proportional between \((a+b)\) and \((a-b)\), then find the value of \(x\).
In a fitness park, a straight walking path is divided into three consecutive segments. The lengths of the first and third segments are 18 m and 50 m respectively. If the length of the middle segment is the mean proportional between the other two, what is its length?
If the height at which a ladder touches the wall is the mean proportional between 6 meters and 24 meters, at what height does the ladder touch the wall?
A rectangular garden has a length of 16 meters and a width of x meters. If the width is the mean proportional between 4 meters and 64 meters, what is the value of x?
Find the mean proportional between \((2+\sqrt{3})\) and \((10-\sqrt{75})\).
The mean proportional between two positive numbers is 30. If the difference between the two numbers is 45, what is the smaller of the two numbers?
In all, how many kids wanted to see the moon?
How many kids wanted to see at least 2 objects?
How many children like both brown and white but not black?