The number of groups formed from 3 books of
physics, 4 books of mathematics and 5 books of
chemistry when each group contains at least one
book of each subject
(A) 3255
(B) 1670
(C) 4820
220 I (D) 1560
Answers
Answered by
3
Answer:
b)1670. .. .
I dont now this is right or wrong
Answered by
1
Answer:
3255
Step-by-step explanation:
Number of ways of selecting physics books = 2^3 - 1 = 7
Number of ways of selecting chemistry books = 2^5 - 1 = 31
Number of ways of selecting math books = 2^4 - 1 = 15
7*15*31 = 3255
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