Questions
Cards are drawn one-by-one at random from a well-shuffled pack of 52 playing cards until 2 aces are obtained
from the first time. The probability that 18 draws are required for this is
Remember concepts with our Masterclasses.
80k UsersReady to Test Your Skills?
Check Your Performance Today with our Free Mock Tests used by Toppers!detailed solution
Correct option is C
18 draws are required for 2 aces. This means in the first 17 draws, there is one ace and 16 other cards, and 18thdraw produces an ace. so, the required probability is 48C16×4C1 52C17×335=56115925Similar Questions
The odd against an event are 5 to 2 and the odds in favour of another disjoint event are 3 to 5. Then the probability that atleast one of the events will happen is
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
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
