Cards each marked with one of the numbers 6, 7, 8, …., 15 are placed in a box and mixed thoroughly. One card is drawn at random from the box. The probability of getting a card with a number less than 10 is:
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Answered by
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4/10........
as....total no. of cards=10
no. of cards with less than 10=4 i.e. nos. 6,7,8 and 9
as....total no. of cards=10
no. of cards with less than 10=4 i.e. nos. 6,7,8 and 9
Answered by
51
given :
the cards are marked with the numbers 6 to 15 and are mixed well before removing one card out.
need to find out :
probability of getting a card with a number less than 10
solution :
probability = number of favorable events / total number of events
the number that are below 10 = 4
the total number of cards with all numbers = 10
probability = 4/10
= 2/5
∴ the probability of getting a number below 10 = 2/5
the cards are marked with the numbers 6 to 15 and are mixed well before removing one card out.
need to find out :
probability of getting a card with a number less than 10
solution :
probability = number of favorable events / total number of events
the number that are below 10 = 4
the total number of cards with all numbers = 10
probability = 4/10
= 2/5
∴ the probability of getting a number below 10 = 2/5
fluffy:
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