Two dies are thrown simultaneously, and the sum of the numbers obtained is found to be 7. What is the probability that the number 3 has appeared at least once by using conditional theorem.

A) 4/3
B) 2/3
C) 1/3
D) 5/3

In a group of kids, if one is selected at random the probability that he/she likes oranges is 0.6, the probability that he/she likes oranges AND apples is 0.3. If a kid, who likes oranges, is selected at random, what is the probability that he/she also likes apples by using conditional theorem.

A) 0.8
B) 0.5
C) 0.9
D) 1.2

In a group of 100 computer buyers, 40 bought CPU, 30 purchased monitor, and 20 purchased CPU and monitors. If a computer buyer chose at random and bought a CPU, what is the probability they also bought a Monitor by using conditional theorem.

A) 1/8
B) 3/8
C) 1/2
D) 2/4

In a survey among few people, 60% read Hindi newspaper, 40% read English newspaper and 20% read both. If a person is chosen at random and if he already reads English newspaper find the probability that he also reads Hindi newspaper by using conditional theorem.

A) 7/2
B) 5/2
C) 3/2
D) 1/2

In a class, 40% of the students like Mathematics and 25% of students like Physics and 15% like both the subjects. One student select at random, find the probability that he likes Physics if it is known that he likes Mathematics by using conditional theorem.

A) 3/8
B) 5/8
C) 7/8
D) 9/8