Question

A basket contains 3 red balls 5 blue balls and 7 green ball 2 balls are picked one after the other without replacement find the probablity that first is red and second is blue

Answer 1

I dnt know it

Answer 2

probab(red, then blue) = 3/15 * 5/14
= 15/210
= 1/14

Answer 3

3/15 × 4/14
12/210
2/35 ✓