Question

From all the two digit numbers a number is chosen at random.
Find the probability that the chosen number is a multiple of 7.​

Answer 1

Answer:

The two digits multiples of 7 are 14, 21, 28,….., 98. Number of such numbers = 14-1=13. (first 14 multiplies except 7) There are 90 two digits numbers.

P(E)=13/90 Answer

Answer 2

Answer:

13/90

Step-by-step explanation:

The multiples of 7 that are two digit numbers = 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98

Total number of two digit numbers = 90

The probability that the chosen number is a multiple of 7 = Total number of multiples of 7 that are two digit numbers / Total number of two digit numbers

The probability that the chosen number is a multiple of 7 = 13/90