Total cup cake ordered = 8
Percentage 'P' of a quantity x can be calculated using:
p/100 * x
Here,
P = 50%
x = 8
Put these values in formula.
50/100 * 8
=> 1/2 * 8
=> 4
So, the 50% fewer cupcakes would be (8 - 4) = 4 cupcakes.
We know the perimeter is the sum of all sides. So lenght+length+width+width = 2length+2width.
Let's call the width x. If the length is 4m longer, then it's x+4.
We know the perimeter, so we can make an equation:
56=2x+2(x+4)
And solve from there:
56=2x+2x+8
56=4x+8
48=4x
48/4=x
x=12
The width, which is x, is 12 m. And the length, x+4, is 16 m.
You can check this is correct by calculating the perimeter using those values: 12+12+16+16=56.
Answer: C would be the correct answer. This is because it is measuring height per said time(hour).
Hope this helps :)