Question

find the probability of a number between 1&50 which is divisible by 1 and itself

Answer 1

the nos. which r divisible by 1 and itself are..2,3,5,7,11,13,17,19,23,29,31,37,41,43& 47
therefore there r 15 nos from 1 to 50 which r divisible by 1 and itself.
therefore probability = 15/50
= 3/10

hope this helps u..

Answer 2

the numbers are prime numbers.and between 50,
2,3,5,7,11,13,17,19,23,29,31,37,41,43, 47 are the prime numbers.
thus, favourable outcome=15
total outcomes=50
p(E)=favourable outcomes/total outcomes
p(E)=15/50
thus the probability of getting a prime number between 1to 50=15/50
=3/10

hope it helps!!