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A bag A contains 2 white and 3 red balls...

A bag A contains 2 white and 3 red balls and a bag B contains 4 white and 5 red and balls. One ball is drawn at random from one of the bags and is found to be red. Find the probability that it was drawn as red.

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RD SHARMA ENGLISH-PROBABILITY-All Questions
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  2. The contents of urn, I, II, III are as follows Urn I: 1 White, 2 black...

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  3. A bag A contains 2 white and 3 red balls and a bag B contains 4 white ...

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  4. The contents of three urns are as follows: Urn 1-7 white, 3 black ball...

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  7. Suppose 5 men out of 100 and 25 women out of 1000 are god orators. An ...

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  8. In a class, 5% of the boys and 10% of the girls have an IQ of more tha...

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  11. Suppose we have four boxes A,B,C and D containing coloured marbles ...

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  12. A manufacturer has three machine operators A, B and C. The first op...

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  13. There are three coins. One is two headed coin (having head on both ...

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  14. In  a factory machine A produces 30% of the total output, machine B...

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  15. Three urns, A, B, and C contain 6 red and 4 white ; 2 red and 6 white;...

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  16. In a group of 400 people, 160 are smokers and non-vegetarian, 100 are ...

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  17. In a certain college, 4% of boys and 1% of girls are taller than 1....

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  18. An insurance company insured 2000 scooters and 3000 motorcycles. The ...

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  19. Of the students in a college, it is known that 60% reside in a hostel ...

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  20. There are three coins. One is two -heated coin (having head on both fa...

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