Question

9. 15 cards numbered 1, 2, 3, 4,....... 14, 15 are put in a box and mixed thoroughly. A man draws a
card at random from the box. Find the probability that the number on the card is
a), a two-digit number
b). a perfect square number
c), a number divisible by 5.
d). a number divisible by 2 or 3.
e), a number divisible by 2 and 3.
f), a number divisible by 7.
g). a number multiple of 8.
h), a two digit number divisible by 5.
i). a two digit number divisible by 2.
j), a two digit number divisible by 3.




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Answer 1

Answer:

Step-by-step explanation:

Answer 2

Step-by-step explanation:

Total no. of possibilities = 15

a) There r 5 no. with 2-digits so probability is = 5/15 = 1/3

2) No. with perfect square is 1,4,9 only which r 3, so probability is = 3/15 = 1/5

c) Divisible by is 3 no. so probability is 3/15 = 1/5

similarly,

D)8/15

e)2/15

f)2/15

g)1/15

h) 2/15

i) 3/15 = 1/5

j) 2/15