Cards numbered 7 to 40 were put in a box. Poonam selects a card at random. what is the probability that poonam selects a card which is a multiple of 7,also find a prime number and a doublet number?
Answers
Answered by
3
Multiple Of 7 between 7-40
=7,14,21,28,35
There are Total 5 multiples of 7 between 7-40.
Total Cards=40-7=33
In including 7=34
Total Card=34
\boxed{\mathbf{Probability\implies\frac{Favourable\: Outcomes}{Total\: Outcomes}}}
Probability⟹
TotalOutcomes
FavourableOutcomes
Favourable Outcomes=5
Total Outcomes=34
\boxed{\mathbf{Probability\:(Multiple\:7)=\frac{5}{34}}}
Probability(Multiple7)=
34
5
janulikki:
Also find doublet number
Similar questions