Question

plss explain and answers ​

Answer 1

Answer:

1. 1/10

2.1/50

3.3/25

Step-by-step explanation:

Probablity=Number of favourable outcomes/Number of possible outcomes

i.prime numbers less than 30 are: 2 3 5 7 11 13 17 19 23 and 29

Therefore number of favourable outcomes is 10

and Number of possible outcomes is 100

therefore probability is 10/100=1/10

ii. common multiples of 5 and 7 are= 35 and 70

Therefore number of favourable outcomes is 2

and Number of possible outcomes is 100

therefore probability is 2/100=1/50

iii. multiples of 5 and 7 less than 100 are: 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 7 14 21 28 42 49 56 63 70 77 84 91 98

Therefore number of favourable outcomes is 12

and Number of possible outcomes is 100

therefore probability is 12/100=3/25