Question

A box contains 3 red beads and 7 white beads. Another box contains 4 red beads and 6 white beads . If one bead is taken from each box , then what is the probability of both beads being red?

Answer 1

In the first box:
Favourable outcomes=3
Total outcomes=3+7=10
Probability of getting red bead=Favourable outcomes/Total outcomes=3/10

In the second box:
Favourable outcomes=4
Total outcomes=4+6=10
Probability of getting red bead=Favourable outcomes/Total outcomes=4/10=2/5