Probability Practice Test 1

Question : 20 of 40

Marks: +1, -0

Two numbers are selected from the set ofintegers 1 to 25. What is the probability thatthe product of numbers will be 48?

Solution:

Sample size

=^25C_2=25!/{23!×2!}=300

Pair of numbers whose product is 48 = (2, 24), (3, 16), (4, 12) and (6, 8).
So, required probability

=4/300=1/75

Go to Question:

Prev Question

Next Question