Question

(v) A two digit number is to be formed from the dights 1,4,5,6,9.
Repetition of digits is allowed. Find the probability that the number
su formed is (a) perfect square
(b) the dight at unit place and ten's place is same. answer please ​

Answer 1

Answer:

• Possible out comes are : 11,14,15,16,19,41,44,45,4,46,49,51,54,55,56,59,61,64,65,66,69,91,94,95,96,99.

probability of an event =No.of possible outcomes /No. of total outcomes

(a) perfect square=16,49,64. =3

P(x) = 3/25

(b) possible outcomes =5

P(x) = 5/25 = 1/5

Therefore (a) =3/25

(b)=1/5

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