Home
Class 9
MATHS
There are a total 70 ladies who watch at...

There are a total 70 ladies who watch at least one of the channels i.e., Zee TV. Sony TV and Star Plus. The total number of ladies who watch Zee or sonly but not star plus, the number of ladies who watch Sony or star plus butnot Zee and the number of ladies who watch star plus or Zee but not Sony is 90. how many ladies watch at least two of these channels if 10 ladies watch all the three chanels?

A

25

B

30

C

40

D

35

Text Solution

Verified by Experts

The correct Answer is:
C
(i) Use Venn diagram.
(ii)
(iii) (a+b+c)+(x+y+z)+10=70
(iv) (a+x+b)+(b+z+c)+(a+y+c)=90.
(v) Using the above information find (x+y +x+10).
Promotional Banner

Topper's Solved these Questions

  • SETS AND RELATIONS

    PEARSON IIT JEE FOUNDATION|Exercise LEVEL 2|24 Videos

  • SALES TAX AND COST OF LIVING INDEX

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|14 Videos

  • SHARES AND DIVIDENDS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL 3)|10 Videos

Similar Questions

Explore conceptually related problems

The number of viewers of star plus forms what percentage of number of viewers of NDTV ?

Total number of stars present in universe is

The ratio of the number of ladies to that of gents at a party was 3: 2 when 20 more gents joined the party, the ratio was reversed . The number of ladies presents at the party was

If 55% of the teachers in a school are gents and the number of lady teachers in the school is 90, then the total number of techers in the school is

76 ladies complete a job in 33 days.Due to some reason some ladies did not join the work and therefore it was completed in 44 days. The number of ladies who did not report for the work is