The odds against A solving a problem are...

The odds against A solving a problem are 3 to 2 and the odds in favour of B solving the same problem are 5 to 4. Then the probability that the problem will be solved if both of them try the problem is

`16//21`

`52//77`

`11//15`

`1//5`

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DIPTI PUBLICATION ( AP EAMET)-PROBABILITY-EXERCISE-1C

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