in a locality 65% of the familys read times of india and 75% read indian express if 15% read neither.if 331 family's read both the newspapers how many familys lived in that locality
Answers
Answer:
CAT Set Theory Problems ; Set theory and Venn Diagrams are one of the most commonly tested topics in CAT exam. Questions from CAT Set theory have appeared consistently in the CAT exam for the last several years. Set theory and Venn diagram is a very interesting topic, as it is also useful in CAT Data Interpretation and Logical Reasoning . CAT exam does not only check for formulaic knowledge in this idea, but also for strong fundamentals and application of the concepts involved. One can usually expect 1~2 questions from Set Theory in the CAT exam. Make use of 2IIMs Free CAT Questions, provided with detailed solutions and Video explanations to obtain a wonderful CAT score. If you would like to take these questions as a Quiz, head on here to take these questions in a test format, absolutely free.
Answer:
600
Step-by-step explanation:
Let the population of family be
therefore,
65/100*x + 75/100*x + 15/100*x -330 = x { 330 is
subtracted in L.H.S side bcoz it is reading twice
time as A.T.Q }
65x/100+ 75x/100 +15x/100 =330+x
155x/100=330+x
155x=33000+100x
155x-100x=33000
55x=33000
x=600
Hence the population of family = 600