Cards numbered 9 to 50 were put in a box. If a card is selected at random from it, then the probability that it is a multiple of 4, is:
a) 6/25 b) 5/21 c) 4/19 d) 3/17
Answers
Answered by
2
Answer:
Option B.5/21 is the correct answer.
Answered by
1
Given : Cards numbered 9 to 50
a card is selected at random from it,
To Find : probability that card is a multiple of 4
a) 6/25 b) 5/21 c) 4/19 d) 3/17
Solution:
Cards numbered 9 to 50
Total Cards = 42
n(S) = 42
Multiples of 4
12 , 16 , 20 , 24 , 28 , 32 , 36 , 40 , 44 , 48
Ten cards are Multiple of 4
n(E) = 10
E is the event of selecting a card multiple of 4
P(E) = n(E)/n(S)
= 10/42
= 5/21
probability that card is a multiple of 4 is: 5/21
Correct option is b) 5/21
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