6.4k views
4 votes
There are two spinners. Each spinner has 10 equal sectors labeled with the numbers 1 through 10.

How many outcomes show a prime number on the first spinner and a composite number on the second spinner?




9

20

25

100

User Jebbie
by
8.1k points

1 Answer

4 votes

Answer: Second option is correct.

Explanation:

Since we have two spinners,

Each spinner has 10 equal sectors labeled with the numbers from 1 to 10.

Primes numbers from 1 to 10 is given by


\{2,3,5,7\}

So, number of outcomes shows a primes number from 1 to 10 = 4

Similarly ,

Composite numbers from 1 to 10 is given by


\{4,6,8,9,10\}

So, number of outcomes shows a composite number from 1 to 10 =5

∴ Total outcomes show a prime number on the first spinner and a composite number on the second spinner is given by


4* 5=20\\

Thus, Second option is correct.


User Toprak
by
7.5k points