First slide

Introduction to Relations (XI) on Sets

Question

If $n (A) = 4, n (B) = 3, n (A \times B \times C) = 24, then n (C) =$

Easy

A

288
B

1
C

12
D

2

Solution

$n (A) = 4, n (B) = 3$
$n (A) \times n (B) \times n (C) = n (A \times B \times C)$
$4 \times 3 \times n (C) = 24 \Rightarrow n (C) = \frac{24}{12} = 2 .$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App