Problema Solution
Alex and Freddy collect stamps. The number of stamps in Alex’s collection to the number of stamps in Freddy’s collection is in the ratio of 3:5. How much more stamps does Freddy have if together they have 136 stamps?
Answer provided by our tutors
Alex has: 'x' stamps
Freddy has: 'y' stamps
We need to find 'y - x'.
x : y = 3 : 5 cross-multiply
5x = 3y
x + y = 136
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click here to see the system of equations solved for x and y
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x = 51 stamps
y = 85 stamps
85 - 51 = 34 stamps
Freddy has 34 stamps more than Alex.