Miscellaneous Company Exam Company Numerical Ability Probability

Mandrake has to choose from 4 from 10 people. There are 3 girls, 5 boys , 2 children. What is total probability that he will choose 1G , 2B , 1C?

Read Solution (Total 3)

(3c1*5c2*2c1)/10c4
14 years agoHelpfull: Yes(18) No(0)

Ans:2/7
(3C1 * 5C2 * 2C1)/ 10C4 = 3*10*2/210 = 60/210=2/7
14 years agoHelpfull: Yes(11) No(1)
ans: 2/7
as 3! * 5! * 2! * 4! * 6! / 2! * 3! * 10!
=2 /7
12 years agoHelpfull: Yes(0) No(2)

Miscellaneous Company Exam Other Question

In a class of 250 students, on JAN 2 15% of the girls and 10% of the boys are absent. If on 100% attendance there are 10 boys. Find the percentage present?
there are two kind of professional in a company software & personal. If the personal are 15% of the total .a party is going .in a party if 50% of the total professional left and all are s/w then what is the ratio of the s/w professional left to total software professional.