In town of 500 people, 285 read Hindu and 212 read
Indian express and 127read Times of India 20 read hindu and
times of India and 29 read hindu and Indian express and 35
read times of India and Indian express. 50 read no news
paper. Then how many read all the three paper?
The data is incorrect.
(^==>intersection & U==> union)
the formula fails
companies give this blunder without knowing simple basics
The answer is 45 people read all the three news papers and 321 people read only one news paper. Just draw a venn diagram with three circles and mark the corresponding parts using the given data. If you take the intersection part of all the 3 circles as 'x'. three expressios are formed as follows: 285-(20+29+x),212-(29+35+x) and 127-(20+35+x).these equations will giv people reading hindu,indian exp and times of india respectively. add (20+29+35+x) and 285-(20+29+x),212-(29+35+x) and 127-(20+35+x) and equate it to 450. x gives the intersection of 3 circles. then u can find individual readers by sybstituting in the expressions 285-(20+29+x),212-(29+35+x) and 127-(20+35+x).
A lady has fine gloves and hats in her closet- 13 blue, 27
red, and 40 yellow. The lights are out and it is totally
dark. In spite of the darkness, she can make out the
difference between a hat and a glove. She takes out an item
out of the closet only if she is sure that if it is a glove.
How many gloves must she take out to make sure she has a
pair of each color?