Divisor Probability

A divisor of 360 360 is randomly selected. What is the probability that the number is divisible by 4 4 ? Enter your answer in percent rounded to the nearest whole number.**


The answer is 50.

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Arjun Shrivastava
Jul 26, 2018

**We know that 360 = 2 3 3 2 5 360 = 2^3 \cdot 3^2 \cdot 5 . To make a number divisible by 4 4 we need 2 2 's power to be 2 2 or 3. 3. There 4 4 possibilities for the powers of 2 2 ( 2 0 , 2 1 , 2 2 , 2 3 ) (2^0,2^1,2^2,2^3) so the probability is 2 4 = 1 2 = 50 \frac{2}{4} = \frac{1}{2} = 50 %

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...