Question

10. Tickets numbered 2, 3, 4, 5, .....100, 101 are placed in a box and mixed thoroughly. One ticket is
drawn at random from the box. Find the probability that the number on the ticket 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.


plz.z...answer this I'll mark u as brainlyest......plz..​

Answer 1

Answer:

total outcomes = 100

a) favourable outcomes = {10, 11,12.......99}

= 90

probability of a two digit number = 90/100

= 9/10

b) favourable outcomes = {4,9,16,25,36,49, 64 ,81,100}

= 9

probability = 9/100

c) favourable outcomes = 20

prowebability = 20/100

= 1/5

d) a number divisible by 2 = 50 nos.

probability 1 = 50/100

= 1/2

a number divisible by 3 = 33

probability 2 = 33/100

probability ( divisible by 2 or 3 ) = 50/100+33/100

= 83/100

e) a number divisible by both 2 and 3 = 50/100×33/100

= 165/10000

f) favourable outcomes = 14

probability = 14/100

= 7/50

g) favourable outcomes = 12

probability = 12/100

= 6/50

= 3/25

h) favourable outcomes = { 10, 15, 20 ,...... 95}

= 18

probability = 18/100

= 9/50

i ) favourable outcomes = { 10,12, 14,16.......98}

=45

probability = 45/100

= 9/50

j) favourable outcomes = {12,15,18.....99}

= 30

probability = 30/100

= 3/10

hope it helps and mark me as the brainliest

Answer 2

The number of cards between 2 to 101 is 100.

a) a two-digit number = 92/100 = 23/25

b). a perfect square number = 9/100

c). a number divisible by 5.= 20/100 = 1/5

d), a number divisible by 2 or 3.= 83/100

e). a number divisible by 2 and 3 = 16/100 = 4/25

f). a number divisible by 7 = 14/100 = 7/50

g). a number multiple of 8 = 12/100 = 3/25

h). a two digit number divisible by 5 = 19/100

i). a two digit number divisible by 2 = 46/100 = 23/50

j). a two digit number divisible by 3 = 30/100 = 3/10

Thank u.

Hope this helps you.

Please mark as brainliest if you think it is so.

@spyder