If a fraction’s denominator is decreased by 80% and numerator is increased by 300%, the fraction becomes 2/9. What is the fraction?
Answer: C
Let fraction be a/b
80?crease means denominator 20% of original value 0.2b
300% increase means numerator a+300% of a = a+ 3a 4a
Also, new fraction = 4a/0.2b = 2/9
a/b = 1/90