Question

if we choose one number from the two digit numbers what is the probability that the sum of digits of that number will be 10? ​

Answer 1

Answer:

1/10

Step-by-step explanation:

Two-digit numbers whose sum is 10 are : 

 19

28

37

46

55

64

73

82

91

Numbers whose sum is 10 = 9

Total 2-digit Numbers = 90

Therefore , the probability that the sum of digits of that number will be 10:

= 9/90

= $\frac{1}{10}$

Answer 2

Answer:

1/10

Step-by-step explanation:

The two digits number those sum 10:

19

28

37

46

64

55

73

82

91

,The number whose sum is 10= 9