Question

an examination has questions marked 1 through 60. a student picks one question at random to try and answer it. what is the probability that the number of the question picked is divisible by both 2 and 5?

Answer 1

Answer:

Step-by-step explanation:

Favourable Outcomes:-

Question No Divisible by both 2 & 5

10,20,30,40,50,60

So,No.Of Favourable Outcomes=6

Total No. Of Outcomes=60

No.Of FavourableOutcomes P(E)= ————————————————

Total No. Of Outcomes

So,

P(Q No. Divisible by both 2 &5)= 6

——

60

Thus, Probability of Getting Question No. Choosen At Random which is divisible by both 2&5 is 1/10