Problema Solution
The ratio of a number of Ron's marbles are 3:5.Ron has 30 marbles. If Ron buys another 4 marbles, what will be the new ratio of Ron's marbles to Sue's?
Answer provided by our tutors
We will assume that the ration of Ron's to Sue's marbles is 3:5.
Ron has 30 marbles, and Sue has 'x' marbles.
First we will find 'x':
30 : x = 3 : 5
......
click here to see the equation solved for x
......
x = 50 marbles
Ron buys another 4 marbles and now he has 30 + 4 = 34 marbles altogether.
34 : 50 = 34/50 = 17/25
The ratio of Ron's marbles to Sue's is 17 : 25.