45 participants signed up for a walk. 27 of them are females what was the ratio of the number of females to the number of males?
(1)5:3
(2)3:5
(3)3:2
(4)2:3
There are a couple of ways to approach this problem, but one common method is to use the concept of ratio as a comparison of two quantities. If we let f be the number of females and m be the number of males, then we have:
f + m = 45 (since there are 45 participants in total)
f = 27 (since 27 of them are females)
We can use these equations to find the value of m:
m = 45 - f = 45 - 27 = 18
Now we can express the ratio of females to males as:
f:m = 27:18 = 3:2
Therefore, the answer is (3)3:2.
To find the ratio of the number of females to the number of males, we need to know how many males there are.
Given that 45 participants signed up for the walk and 27 of them are females, we can calculate the number of males by subtracting the number of females from the total number of participants:
Number of males = Total number of participants - Number of females
= 45 - 27
= 18
So, the ratio of the number of females to the number of males is 27:18, which simplifies to 3:2.
Therefore, the answer is option (3) 3:2.