Question

Q 4) A box contains 4 black,3 white and 7 red cards.A card is drawn at random,what is the
probability that a card drawn is a
(a) red card
(b) red or white card​

Answer 1

Question:-

★ A box contains 4 black,3 white and 7 red cards.A card is drawn at random,what is the probability that a card drawn is a(a) red card(b) red or white card

Solution:-

Black cards – 4

White cards – 3

Red cards – 7

______________

Total cards – 14

a. Red cards = Favorable

Outcomes = 7/14 ⟹ 1/2

c. Red and White cards = Favorable

Outcomes = 3 +7/14 ⟹ 5/7

☞ Hence verified