A box contains 20 cards which are numbered from 1 to 20. If one card is drawn random from the box , find the probability of getting : multiple of 4 and 5.chapter-probability.class-IX
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Step-by-step explanation:
When one card is drawn at random, there are 20 possible outcomes.
(i) To find: The probability that the number on the drawn card is multiple of 4 and 5....
Out of the 20 numbers present on the cards,
The multiples of 4 are 4, 8, 12, 16 and 20...
The multiples of 5 are 5,10,15 and 20....
Hence, there are exactly 5 + 4 − 3 = 6 favourable outcomes.
The probability of occurrence of an event is defined as .
number of favourable events/total number of events...
In this way, we find that the probability that the number on the drawn card is multiple of 4 or 5 is 6/20..... prefer to it child!!!!!
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