- The ratio of two numbers is 13:12, and their sum is 125. Find the numbers,
Answers
There are several ways to approach a problem like this one, but my personal favourite is as follows:
Since 3:7 is a ratio which essentially represents numbers that are of a bigger value, we can say that the two numbers can be denoted as 3n and 7n, where n is a variable that we will find from the given information.
Since the sum of the numbers is 120, we can say that:
3n+7n=120
10n=120
n=12
Now that we have established this, we can just go back and substitute the value of n into 3n:
3n = 3*12
= 36
Therefore, the smaller number is 36. This can also be double checked by finding the value of the other number and seeing if it adds up to 120.
7n = 7*12
= 84
84+36 = 120
This way, we have double checked our answer to ensure it is correct.
I hope this helped, and I also hope you are able to apply this to similar problems!
Step-by-step explanation:
The Number are give 13:12
Sum of Number = 125
Let the first number be = 13x
Second Number is = 12x
13x+12x = 125
25x= 125
X = 125/25
X = 5
So X = 5
- put value 13x = 13×5
- = 65
- put value 12x = 12×5
- = 60
- Here you answer is 65,60
- thanks dear friend
- I hope you help