Math, asked by najiyajinu0908, 9 months ago

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

Answers

Answered by Sanaya00
0

Answer:

total pens = 20 + 50 + 30 = 100

black ink pens = 30

probability of getting black ink pen = 30/100 = 3/10

Answered by jaya92001
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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