62. A letter is taken out at random from the
word RANGE and another is taken out
from the word PAGE. The probability that
they are the same letters is: (N 06)
a) 1/20 b) 3/20
c) 3/5
d) 3/4
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Answer:
A letter from the word RANGE can be taken out in 5 ways. Similarly, a letter from the word PAGE can be taken out in 4 ways.
So, both the task of taking one letter from each word can be done in 5∗4=20 ways.
We have to find the probability that both the letter are the same.
The words RANGE and PAGE have 3 letters in common: A, G and E.
So a common letter can be chosen in 3 different ways, and once chosen from any one word then we have only 1 choice of taking out a letter from the other word.
So, favorable number of ways =3∗1=3
Prabability =
totalno.ofways
favorableno.ofways
=
20
3
mark as brailant
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