A rectangular photograph shown by the white region in the figure is en...
Steps 1 & 2: Understand Question and Draw Inferences
Notice that the frame has the same width throughout the border.
Let us say that the longer dimension of the photograph is L, the smaller dimension of the photograph is B and the width of the frame is x.
Then, AB = L + 2x
And, BC = B + 2x
We need to find the ratio of AB:BC. To do so, we ought to know the values of L, B, and x.
Step 3: Analyze Statement 1
The ratio of the longer dimension to the smaller dimension of the photograph is 3:2
Let’s say that for the white area the length of the longer dimension and the length of the shorter dimension are 3z and 2z where z is a positive number.
Thus,
With different values of z and x, we shall obtain different values of the required ratio.
For example, if z =1, x = 1, then AB:BC = 5:4. Whereas, if z = 1, x = 2, then AB:BC = 7:6.
INSUFFICIENT.
Step 4: Analyze Statement 2
If a frame of twice the width was used then the ratio of AB to BC would have been 5:4
In this case, AB = L + 2(2x) = L + 4x
And, BC = B + 2(2x) = B + 4x
We are given that AB:BC = 5 : 4
We need to find the ratio of
Without the values of L, B, and x, it is impossible to determine its value.
INSUFFICIENT.
Step 5: Analyze Both Statements Together (if needed)
Combining statements (1) and (2),
We know that L:B = 3:2, but we do not know the values of L and B.
Let’s assume the values of L and B to be 3z and 2z and the original width is x.
Then,
Required ratio
The ratio has been determined.
SUFFICIENT.
(C) is the correct answer.