A box contains 90 discs which are number...

A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears : a number divisible by 5.

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MBD-Probability-Exercise

A box contains 90 discs which are numbered from 1 to 90. If one disc i...
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If a die is thrown, what is the probability that an 'ace' turns up ?
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Find the probability of not getting a pair of heads in a simultaneous ...
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In a single throw of two dice, what is the probability of getting same...
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Three coins are tossed. Find the probability of getting : all heads
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Three coins are tossed. Find the probability of getting : all tails
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Three coins are tossed. Find the probability of getting : at least one...
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Find the probability of getting a number less than 5 in a single throw...
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A bag contains 3 red balls. 5 black balls and 4 white balls. A ball is...
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A bag contains 3 red balls. 5 black balls and 4 white balls. A ball is...
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A bag contains 3 red balls. 5 black balls and 4 white balls. A ball is...
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It is known that a box of 600 electric bulbs contains 12 defective bul...
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1000 tickets of a lottery were sold and there are 5 prizes on these ti...
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A die is thrown once. Find the probability of getting : an even number
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A die is thrown once. Find the probability of getting : a number great...
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A die is thrown once. Find the probability of getting : a number betwe...
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A bag contains 5 red balls and some blue balls. If the probability of ...
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A bag contains 5 red balls, 8 white balls 4 green balls and 7 black ba...
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A bag contains 5 red balls, 8 white balls 4 green balls and 7 black ba...
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A bag contains 5 red balls, 8 white balls 4 green balls and 7 black ba...
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In a lottery there are 10 prizes and 25 blanks. Find the probability o...
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