Answer:
120:80 I think this is the answer
Step-by-step explanation:
25/20 × 100% = 125%
125% - 100% = 25%
25% profit :)
A simple answer is that any given trapezoid with height h and length of the parallel lines a and b, is half of a parallelogram with an area of (a+b) x h. Since the trapezoid is half of this, it is h(a+b)/2