Jan manages a pet store. During the morning 24 adults and 16 children entered the store. What is the probability that the next customer will be a child?
a) 3/5
b) 2/3
c) 1/4
d) 2/5
(all of the multiple choice answers are fractions)
2007-07-28 06:58:34 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
D.
24+16= 40
16 ?
__ x __
40 100
To solve this you need to cross multiply. 16 x 100 divided by 40=40.
2/5=40.
The answer is D
2007-07-28 07:25:01 · answer #1 · answered by ♥ 5 · 0⤊ 0⤋
There are 24+16=40 people. 16 were children. The probability of a customer being a child is 16/40=2/5
2007-07-28 14:31:41 · answer #2 · answered by cidyah 7 · 0⤊ 0⤋
ok so 24+16=40 and 16/40 is reduced to 2/5 so the answer is
d) 2/5
2007-07-28 14:02:55 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Based on the numbers already entered:-
P(child) = 16 / 40 = 2 / 5
ANSWER d)
2007-07-28 14:22:41 · answer #4 · answered by Como 7 · 0⤊ 0⤋
the answear is d.that type of questions children are answearing in theyr schools, when they are only 12 years old (in my country Lithuania).You just have to do a "proporcion" (i don't know what's the word in english), and it looks like this.
40people-100%
16people-x%
X=16x100:40
X=40%
It means, that the probability, that the next costumer will be a child is 40% and that is 2/5.
2007-07-28 14:16:14 · answer #5 · answered by Reptilias 1 · 0⤊ 0⤋
total population is 40.
children over total = 16/40
= 4/10 = 2/5
d
2007-07-28 14:06:35 · answer #6 · answered by Anonymous · 0⤊ 0⤋
b
2007-07-28 14:01:53 · answer #7 · answered by Anonymous · 0⤊ 1⤋
D
2007-07-28 14:06:49 · answer #8 · answered by minacheng8 1 · 0⤊ 0⤋