wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In a survey it was found that, the number of people who like only What’s app, only Facebook, both What’s app and Facebook and neither of them are 2n,3n,69n,693n
respectively. What is the number of people who like facebook?

A
49
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
36
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
72
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
23
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 72
Since, the number of people cannot be fraction, the values of n and 3n need to be factors of 69.
n can be only 1 (or) 23
No. of people who like facebook =3n+69n=72

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Cardinal Number
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon