in a box there are twenty red ink pens 50 blue ink pens and 30 black ink pens one pen is taking at random from the box.what is the probability of getting a black ink pens
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Answered by
0
Answer:
total pens = 20 + 50 + 30 = 100
black ink pens = 30
probability of getting black ink pen = 30/100 = 3/10
Answered by
2
Step-by-step explanation:
probability of getting black ink pen = no.of black ink pens/ total no .of pens
= 30/ 50+30+20
= 30/100
=3/10
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