A two-digit number is chosen at random (from 10 to 99). The probability that it is divisible by 10 is 9/90. What is the probability that it is NOT divisible by 10?

Question

Accepted Answer

81/90. There are 90 two-digit numbers; 10,20,...,90 are the 9 divisible by 10. P(not) = 1 - 9/90 = 81/90.

A two-digit number is chosen at random (from 10 to 99).
The probability that it is divisible by 10 is $\frac{9}{90}$ .
What is the probability that it is NOT divisible by 10?

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A two-digit number is chosen at random (from 10 to 99).The probability that it is divisible by 10 is 909​.What is the probability that it is NOT divisible by 10?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Complementary Events practice

A two-digit number is chosen at random (from 10 to 99).
The probability that it is divisible by 10 is $\frac{9}{90}$ .
What is the probability that it is NOT divisible by 10?