Venn Diagrams- Unraveling Terminology & Percentage Problems in Venn Diagrams - Videos

Mayank explains Venn Diagrams- Unraveling Terminology & Percentage Problems in Venn Diagrams

35 are yellow
20 are red
15 are both red and yellow
Find:
1. Total blocks (40)
2. Are only yellow (20) vs yellow (35)
 
35 are yellow, 20 are red, 30 are blue, 5- yellow and red, 2 red & blue, 2 – blue & yellow, 6 have only 2 colors.
1. Only red (14) vs. red (20)
2. Only/exactly red and yellow (4) vs. red and yellow (1)
3. Only/exactly either red or yellow (43) vs. either red or yellow (45) vs. either red or yellow or both (50)
4. Are not either red or yellow(27) vs. are not both red and yellow (72)
5. Red and one other color (5) vs. red and other color (6)
6. Exactly 2 colors (6) vs. at least 2 colors (7)
7. All three (1) and total (77)

In a class of 60 students, 40% can speak only Hindi, 25% can speak only English, and rest of the students can speak both the languages. How many students can speak English?
36
 
In examination, 65% of the students passed in Mathematics, 48% passed in Physics, and 30% passed in both. What percent of students failed in both the subjects? If there are 200 students, then find the number of failed students.
83% passed, 17% or 34 failed

 
In an examination 20% of the students failed in Math, 15% in English, and 25% in Hindi. If 5% failed Math & English, 10% failed English & Hindi, 15% failed Math and Hindi, and 2% failed all the three subjects, find percent of students who passed in all three subjects.
100 – 32 = 68%
2400 players are from MP and UP. Each player plays one or more of cricket (C), football (F), hockey (H). 45% players are from MP and remaining from UP. From MP, boys and girls are in ratio 5:4. Of the girls from MP, 20% play only C, 10% play only F & 10% play only H. 20% play C & F. 20% play C & H. 10% play F & H. Remaining play all three. Players from UP, boys & girls are in ratio 4:7. Of the girls from UP, 25% play only C, 10% play only F & 8% play only H. 15% play C & F. 10% play C & H. 15% play F & H. How many girls from MP and UP play only either cricket or football? 144 + 294 = 438

This video will be useful for students preparing for entrance exams like JEE, SAT, ACT, GATE, GMAT, GRE.
Also aspirants preparing for examinations like Bank PO, SSC, NTSE, IAS CSAT will find the concepts in this video helpful.

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For lecture handouts google “Venn Diagram Percent Problems Examrace YouTube Handouts”

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