Use the counting principle to obtain the answer.
-A sports shop sold tennis rackets in 4 different weights, 3 types of string, and 3 grip sizes. How Many different rackets could they sell?
A) 10
B) 48
C) 36
D) 21

Question

Use the counting principle to obtain the answer.
-A sports shop sold tennis rackets in 4 different weights, 3 types of string, and 3 grip sizes. How Many different rackets could they sell?
A) 10
B) 48
C) 36
D) 21

Quizplus · Accepted Answer

The counting principle states that if there are $n$ ways to do one thing, and $m$ ways to do another, then there are $n \times m$ ways to do both. Here, there are 4 weights, 3 types of string, and 3 grip sizes, so the total number of different rackets is $4 \times 3 \times 3 = 36$.

Use the Counting Principle to Obtain the Answer. -A Sports Shop Sold Tennis Rackets in 4 Different Weights