Question 1 - Cardinality / inclusion-exclusion Practice

Question 1

00:00Est. 3 min

Marks:+5.000.00

In a survey among

250

students in Bandipur House of IITM BS degree, the following data were found:

100

students have a Spotify subscription,

110

students have a YouTube Premium subscription,

120

students have an Apple Music membership,

30

students have both Spotify and YouTube Premium subscriptions,

30

students have both Spotify and Apple Music subscriptions, and

40

students subscribe to both YouTube Premium and Apple Music. Assuming that every student has at least one subscription, determine how many students have memberships to all three platforms: Spotify, YouTube Premium, and Apple Music.

Integer answer

Medium Difficulty

15 March 2026

Your answer