Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6
Banner 7
Banner 8
Banner 9

Q.

Match the following List-I with List-II 

 COLUMN-I COLUMN-II
P)An urn contains five balls, two balls are drawn and are found to be white. If probability of all the balls in urn are white is k, then 1)k=3191
Q)Out of 15 consecutive integers three are selected at random, then the probability of the sum is divisible by 3 is k, then2)k=316
R)If 3 different cards are placed at random and independently in 4 boxes lying in a straight line (one box can have more than one card). Then the probability of the cards going into 3 adjacent boxes is k, then 3)k=34
S)A box contains 4 Red balls and 1 black ball. Balls are drawn one by one without replacement. If the 5th ball drawn is Red then the probability that the 3rd ball drawn was Red is k, then k =4)k=12

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya

a

P-4; Q-1; R-2; S-3

b

P-3; Q-2; R-4; S-1 

c

P-3; Q-4; R-2; S-1  

d

P-4; Q-3; R-2; S-1 

answer is D.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

Detailed Solution

detailed_solution_thumbnail

(P)  P(A4B)=14×114×110+14×310+14×610+14×1=12
(Q) Required probability  =3×5C3+53 15C3=3191
(R) Required probability =3!(2)4×4×4=316
(S) Probability does not change when order of drawn balls changes. So probability of given question is same as probability of drawing red ball in second position given that first ball drawn is red. Which is 3/4

Watch 3-min video & get full concept clarity
score_test_img

courses

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!

best study material, now at your finger tips!

  • promsvg

    live classes

  • promsvg

    progress tracking

  • promsvg

    24x7 mentored guidance

  • promsvg

    study plan analysis

download the app

gplay
mentor

Download the App

gplay
whats app icon
personalised 1:1 online tutoring