A man and his wife appear for an interview for two posts. The probability of the husband's selection is 1/7 and that of the wife’s selection is 1/5. The probability that only one of them will be selected is

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#Question id: 14484

#Biotechnology

Find the chance of throwing more than 15 in one throw with 3 dice

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#Question id: 14485

#Biotechnology

In a race where 12 horses are running, the chance that horse A will win is 1/6, that B will win is 1/10 and that C will win is 1/8. Assuming that a dead heat is impossible the chance that one of them will win

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#Question id: 14486

#Biotechnology

There are two bags, one of which contains 5 red and 7 white balls and the other 3 red and 12 white balls. A ball is to be drawn from one or other of the two bags, find the chance of drawing a red ball.

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#Question id: 14490

#Biotechnology

In a single throw of two dice find the probability that neither a doublet (same number on the both dice) nor a total of 9 will appear.

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#Question id: 14491

#Biotechnology

A speaks truth in 75% and B in 80% of the cases. In what percentage of cases are they likely to contradict each other narrating the same incident ?

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#Question id: 14492

#Biotechnology

A die is rolled. The probability of getting a number 1 or 6 on the upper face is