Question

Two digit numbers formed by the digits 0,1,2,3,4 where the digits are not repeated. Find the probability that . Find the number formed is greater than 42

Answer 1

Answer:

1/10

Step-by-step explanation:

because we can form 20 two digit numbers

only 43 and 44 are greater than 42 so

n(S)=20

let p be the case where number is greater than 42

n(p)=2

P(p)=2/20=1/10

hope you got your answer

Answer 2

Answer:

hey mate here is the correct answer,

Step-by-step explanation:

→ Two-digit numbers are formed from the digits 0,1,2,3,4 without repeating the digits.

→ ∴ Sample space S={10,12,13,14,20,21,23,24,31,32,34,40,41,42,43}

→ ∴n(S)=16

→ (1) Let A be the event of getting an even number.

→ A={10,12,14,20,24,30,32,34,40,42}

→ ∴n(A)=10

→ probability, p( A) = n(A)/ n ( s) = 10/16 = 5/8

→  (2) Let B the event of getting a prime number.

→ B={13,23,31,41,43}

→ ∴ n ( B)  = 5

→ Probability, P(B)= n( B) / n ( s) = 5/16

thank you