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CMAT 2020 Solved Question Paper
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© examsnet.com
Question : 12
Total: 100
There are six teachers. Out of them, two teach Physics, other two teach Chemistry and the rest two teach Mathematics. They have to stand in a row such that Physics, Chemistry and Mathematics teachers are always in a set. The number of ways in which they can do, is:
48
36
12
24
Validate
Solution:
Here, number of teacher = 6
Physics = 2
Chemistry = 2
Mathematics = 2
∵ P, C and M teachers are always in a set
∴ The number of ways = ∠3 . ∠2 . ∠2 . ∠2
= 6 × 2 × 2 × 2
= 6 × 8 = 48.
© examsnet.com
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