Sagot :
Answer:
210 ways
a combination of 3 different books from a collection of 7 can be picked by
- 7 × 6 × 5 = 210
(pick the first book, then the second, then the third each time one is picked there are less books to chose from)
Answer:
210 ways
a combination of 3 different books from a collection of 7 can be picked by
(pick the first book, then the second, then the third each time one is picked there are less books to chose from)