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A marble is chosen at random from marble...

A marble is chosen at random from marbles numbered 10 to 22. Find the probability of selecting a marble having number 15 and 20 on it.

A

0

B

0.1

C

0.2

D

0.3

Text Solution

Verified by Experts

The correct Answer is:
A
Favourable cases is to getting a marble on which both numbers 15 and 20 are marked. But there is no such marble.
So, `n(E)=0 and n(S) = 10" (from 13 to 22, there are 10 marbles)"`
`therefore" Required probability"=(n(E))/(n(S))=(0)/(10)=0`
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