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Popular Word Problems >

Neville is three times as old as Luna. Three years ago, Neville was four times as old as Luna. The sum of their ages is?

Solution

N e v i ll e i s t h ree t im es a s o l d a s Lu na . T h ree ye a rs a g o, N e v i ll e w a s f o u r t im es a s o l d a s Lu na . T h e s u m o f t h e i r a g es i s ?

Solution

the sum of their ages : 36

Solution steps

Translate the problem into an equation:

3 x - 3 = 4 (x - 3)

Solve for

x, 3 x - 3 = 4 (x - 3) : x = 9

Find the sum of their ages :

36

the sum of their ages : 36

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