Cards are marked with numbers 4, 5, 6, …….50 are placed in the box
and mixed thoroughly.One card is drawn at random from the box.
What is the probability of getting (i) an even prime
number (ii) a number divisible by 5 and (iii) multiple of 7?
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Answer:
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Step-by-step explanation:
There are 48 cards numbered 3,4,5,........,50
are placed in a box.
Total no. of outcomes = 48
(i) There are 8 numbers divisible by 6.
6,12,18,24,30,36,42,48
No. of favourable outcomes = 8.
probability =
Totalnumberofoutcomes
Numberoffavourableoutcomes
=
48
8
=
6
1
P(divisible by 6)=
6
1
(ii) a single digit number
There are 7 single digit number
3,4,5,6,7,8,9
No. of favourable outcomes = 7.
probability =
Total number of outcomes
Number of favourable outcomes
=
48
7
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