There are roses and gumamelas in our yard. the ratio of roses to gumamelas is 5: 4.after picking 5 roses and gumamelas, which i put in a vase, the ratio of the flowers in the yard became even. how many roses and gumamelas were left in our yard?

The number of minutes needed to solve an exerciseof variations problems varies directly as the numberof problems and inversely as the number of peopleworking on the solution it takes 4 people 36 minutesto solve 18 problems. how many minutes will it take4 people to solve 42 problems.joint or combined variation​