if two - third of a bucket is filled in 2 minutes then the time taken to fill the bucket completely will be .
"2 / 3 filled in 2 mint 1 / 3 filled in 1 mint then 2 / 3 + 1 / 3 = 2 + 1 = 3 minutes answer : a"
multiply(divide(2, const_2), const_3)