Questions
One ticket is selected at random from 50 tickets numbered 00, 01, 02, …, 49. Then the probability that the sum of the digits on the selected ticket is 8, given that the product of these digits is zero, equals
detailed solution
Correct option is A
S = {00, 01, 02, … 49}Let A be the event that sum of the digits on the selected ticket is 8 thenA = {08, 17, 26, 35, 44}Let B be the event that the product of the digits is zeroB = {00, 01, 02, 03, … 09, 10, 20, 30, 40}A∩B={8}Required probability =P(A/B)=P(A∩B)P(B)=1501450=114Similar Questions
A couple has 3 children and it is known that atleast one of them is a boy. Then the probability that the couple will have exactly two boys is
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests