Question

(1) Two-digit numbers are formed from the digits 2.0.5.7 without repetition. Complete the following activity to find the probability that the numbers so formed are divisible (a) by 3 (b) by 5. re, take Scanned with CamScanner S= ]]-(3-0. Event A: The numbers formed are divisible by 3. A = (27, 57, 72, 75) .: (A) =]. P(A) - Event 8 : The numbers formed are divisible by 5. = 20, 25, 50, 70, 75) (B) 3 The difference between the ages of a mother and her daughter is 24 years. Answer​

Answer 1

Answer:

S={20 , 25 , 27 , 52 , 50 , 57 , 72 , 70 , 75}

n (S) = 9

Event A : The numbers formed are divisible by 3.

A = {27, 57, 72, 75}

n(A)= 4

p(A) =n(A) / n(S)

p( A ) = 4 / 9

Event B : The numbers formed are divisible by 5.

B = {20, 25, 50, 70, 75}

n(B) = 5

p(B) = n(B) / n(S)

p( B ) = 5 / 9