Question

Alonso spins a spinner and gets a red outcome 12 times He predicts that if he repeats the experiment 1,000 times, the pointer will stop on red 240 times. How many times did Alonso spin the spinner?

Answer 1

Out of the x times Alonso spins the spinner, it lands on red 12 times.

Out of 1000 times, he predicts it will land on red 240 times.

With this information we can set up a proportion to solve for x:

x/12 = 1000/240

Cross multiply

(12)(1000) = (x)(240)

12000 = 240x

Solve for x

x = 12000/240 = 50

The answer is 50 times.