Questions
A box contains 15 mangoes out of which 5 are rotten. Two mangoes are taken out together. If one of them is found to be good, then the probability that both are good is
detailed solution
Correct option is D
Probability of both are good= both are goodone is good ×one is rotten+both are good 10C2 10C1.5C1+10C2=4595=919Similar Questions
In a bolt factory, machines A, B and C manufacture 60%, 25%and 15% respectively. Of the total of their output 1%, 2%, 1% is defective bolts. A bolt is drawn at random from the total production and found to be defective. From which machine, the defective bolt is most expected to have been manufactured
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