calreg11 wrote:
The ratio of two quantities is 3 to 4. If each of the quantities is increased by 5, what is the ratio of these two new quantities?
A. 3/4
B. 8/9
C. 18/19
D. 23/24
E. It cannot be determined from the information given.
This is a great question to test your
conceptual understanding of
RATIOsPoint to note: RATIOs always, always give you a
relationship between numbers, they N
EVER give you the actual numbers.
Therefore, whenever something is added/subtracted/multiplied/divided to Numerator (Nr) and Denominator (Dr) of a given RATIO, you cannot determine the new RATIO unless you know the actual values of Nr and Dr.
Here, the ratio of two quantities is 3:4. What this actually means is that for every 3 units of Quantity-1 (in Nr), there are 4-units of Quantity-2 (in Dr). So, when you add 5, you have to add it to actual values of Quantity-1 and Quantity-2 to find the new ratio.
Since we do not know the actual values of Quantity-1 and Quantity-2, we can't find the new RATIO after adding 5 to both Nr and Dr.
Hope this helps!