Problema Solution
If 120% of a is equal to 80% of b, then what is the value of a+b? In terms of a and b
Answer provided by our tutors
1.20a = 0.80b
a = (0.80/1.20)b
a = (2/3)b
b = (3/2)a
a + b = (2/3)b + b = (2/3 + 1)b = (5/3)b
a + b = a + (3/2)a = (1 + 3/2)a = (5/2)a