Question

Jenn writes for Rolling Stone, covering only jazz and country musicians. If 40% of her stories are about jazz musicians, and she has written 72 stories about country musicians, how many stories has she written about jazz musicians?

a) 28
b) 30
c) 40
d) 48

Answer 1

Jenn has written 48 stories about jazz musicians.

Step-by-step explanation:

To find out how many stories Jenn has written about jazz musicians, we need to use the information given in the question. We are told that 40% of her stories are about jazz musicians. Let's call the total number of stories she has written 'x'. Therefore, 40% of 'x' should equal the number of stories she has written about jazz musicians.

We know that she has written 72 stories about country musicians. Since the remaining stories (100% - 40% = 60%) are about country musicians, we can set up the following equation: 60% of 'x' equals 72. We convert 60% to decimal form by dividing it by 100: 60/100 = 0.6.

So, 0.6 * 'x' = 72. To solve for 'x', we divide both sides of the equation by 0.6: 'x' = 72 / 0.6 = 120. Therefore, Jenn has written 120 stories in total. To find out how many of those stories are about jazz musicians, we need to calculate 40% of 120: 40% of 120 = 0.4 * 120 = 48.