Question

A pen stand contains 3 red pens and 4 blue pens. One pen is drawn at random. What will be the
probability of getting a blue pen ?

Answer 1

Answer :

No. of Red pens in pen stand = 3

No. of blue pens in pen stand = 4

Total no. of pens = 3 + 4

= 7

P ( Blue pen) = No. of favourable outcomes

Total no. of outcomes

p( Blue pen) = 4

7