Question

Mario was visiting the carnival when he noticed a few number relationships.

He made then into brainteasers for you.

a. If three-tenths of the visitors were adults and there were 100 visitors, how many visitors were adults?

b. Five-eighths of the prizes at the Giant Spin were dolls. If there were 64 prizes, how many prizes were NOT dolls?

Answer 1

100/1 x3/10=30 adults

B. 5/8 x64/1 =40 dolls

therefore 64-40=24 were not dolls

Answer 2

Answer: a) 30 and b) 24.

Explanation:

Since we have given that

a) Number of visitors = 100

According to question, we get that If three-tenths of the visitors were adults.

So, number of adults would be

`(3)/(10)* 100\\\\=3* 10\\\\=30`

b) Number of prizes = 64

According to question, Five-eighths of the prizes at the Giant Spin were dolls.

So, Number of prizes are not dolls is given by

`(1-(5)/(8))* 64\\\\=(3)/(8)* 64\\\\=3* 8\\\\=24`

Hence, a) 30 and b) 24.