Probability - If a positive integer n is picked at random from the?

Question

positive integers less than or equal to 10 then what is the probability that 5n+3 is less than or equal to 14?

the options are..............0 , 1/10, 1/5, 3/10, 2/5.

Answer 1

possible n's = 1, 2

so 2/10 or 1/5

Answer 2

n = 1

5(1) + 3 = 8

n = 2

5(2) + 3 = 13

n = 3

5(3) + 3 = 18

etc.

n = 10

5(10) + 3 = 53

Only the cases of n=1 and n=2 result in values less than or equal to 14.  That is out of 10 positive integers.

Probability = 2/10 = 1/5

Answer:

1/5