At first situation, ratio = x/y = 1/5
5x = y -------Equation (i)
Now, after adding 5 more red, it is = x + 5 / y+5 = 1/3
y+5 = 3(x + 5)
y + 5 = 3x + 15
y - 3x = 15 - 5
Substitute the value of y from equation (1),
5x - 3x = 15 - 5
2x = 10
x = 10/2
x = 5
Originally, There were 5 red marbles in the bag
Hope this helps!
I think it’s C but I could be wrong
Answer:
B: 5
Explanation:
As you can see, after 12, it decreases by 4, then 2. It gives me an idea that the number you decrease from the other number is divided by 2. Since the difference of 6 and 1 is 5, then that is probably your answer!
