Question

A bag contains 5 red smileys, 6 yellow smileys and 3 green smileys. If two smileys are picked at random, what is the probability that both are red or both are green in colour?
A) 7
B) 1/7
C) 3/7
D) 0

Answer 1

ĀNSWĒR ⏬⏬


C.1/7




Given total number of smileys = 5 + 6 + 3 = 14


Now, required probability = 


5C2/14C2 + 3C2/14C2

 = 10/91 + 3/91 

= 13/91

 = 1/7

THANKS ✌✌

# NAVI ❤ HARYANVI ♠

Answer 2

A bag contains 5 red smileys, 6 yellow smileys and 3 green smileys. If two smileys are picked at random, what is the probability that both are red or both are green in colour?
A) 7
B) 1/7✔
C) 3/7
D) 0


ĀNSWĒR ⏬⏬


B)1/7 

Explanation:
total number of smileys = 5 + 6 + 3 = 14

Now, required probability = 

5C2/14C2 + 3C2/14C2 

= 10/91 + 3/91

 = 13/91 =1/7


THANKS ✌☺

#DÊSÎ ♥