Question

A standard piano has 88 keys: 52 white & 36 black. If you hit a note at random, what is the probability that it be white?

Hint: please simplify ratios or fractions when possible.

Answer 1

P(w) = 13/22

Explanation:

To find the probability, put the total, 88 on the bottom. Then put the "white", 52, on top.

Probability to play a white key:

52/88

4 goes into both these numbers. Divide by 4 on top and bottom to simplify.

52÷4 / 88÷4

= 13/22

The probability is 13/22

Answer 2

117/484

Step-by-step explanation: hope this helps!