Prabability answer with step by step explanation
Answers
Answer:
1. 12/89
2. 3/89
Step-by-step explanation:
1. numbers with 2 digits : 10-99 which are 89 numbers. (99 - 10 = 89)
multiples of 7 : 14,21,35,42,49,56,63,70,77,84,91,98 (
12 numbers)
thus, probability that the number picked from the set of 2 digit number iss a multiple of 7 = 12/89
2. number with one's place digit thrice the ten's place digit : 13 ,26 ,39 (3 numbers)
{ 1 x 3 = 3 , 2 x 3 = 6 , 3 x 3 = 9 } [ 4 is not possible since 4 x 3 = 12 and same for the numbers after 4 ]
thus, probability that the ones place digit is thirce the ten's place digit = 3/ 89
❤
Answer:
1) 12/89
2)3/89
Step-by-step explanation:
numbers with 2 digits : 10-99 which are 89 numbers. (99 - 10 = 89)
multiples of 7: 14,21,35,42,49,56,63,70,77,84,91,98
(12 numbers)
thus, probability that the number picked from the set of 2 digit number iss a multiple of 7 = 12/89
2. number with one's place digit thrice the ten's place digit : 13,26,39 (3 numbers)
{1x3 = 3,2 × 3 = 6,3 ×3=9] [ 4 is not possible since 4 x 3 = 12 and same for the numbers after 4 ]
thus, probability that the ones place digit is thirce the ten's place digit = 3/ 89