AI Mentor

Check Your IQ

Free Expert Demo

Try Test

Courses

Dropper NEET Course Dropper JEE Course Class - 12 NEET Course Class - 12 JEE Course Class - 11 NEET Course Class - 11 JEE Course Class - 10 Foundation NEET Course Class - 10 Foundation JEE Course Class - 10 CBSE Course Class - 9 Foundation NEET Course Class - 9 Foundation JEE Course Class -9 CBSE Course Class - 8 CBSE Course Class - 7 CBSE Course Class - 6 CBSE Course

Offline Centres

Box $A$ contains $25$ slips of which $19$ are marked $Re .1$ and others are marked $R s .5$ each. Box $B$ contains $50$ slips of which $45$ are marked $Re .1$ each and others are marked $R s .13$ each. Slips of both boxes are poured into a third box and reshuffled. A slip is drawn at random. From the following choices, what is the probability that it is marked other than $Re .1$ ?

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

1975

1175

6475

1375

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

It is given that boxes contain some slips with Re.1, Rs.5, and Rs.13.
We have to find the probability that the marked slip is other than

Re .1

.
First we find the total number of slips.

n (S) = 25 + 50

= 75

19

are marked in Box

A

and

45

are marked in Box

B

as Re.1.
So,

19 + 45

= 64

.
The number of slips that are marked other than

Re .1

is,

75 − 64 = 11

The probability of slips that are marked other than

Re .1

is,

= 1175

.
The probability that slip is marked other than

1175

.
Hence, option 2) is correct.

Watch 3-min video & get full concept clarity

courses

No courses found

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE

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!