Asked by Raquel
Three years ago, Wendy's age was 3/4 as old as Erna and Lucys age was 2/3 as okd as Erna. If the sum of their ages is 67, find the present age of each.
Answers
Answered by
Reiny
ages three years ago:
Erna --- x
Wendy --- 3x/4
Lucy ----- 2x/3
their ages now:
Erna --- x + 3
Wendy --- 3x/4 + 3
Lucy ----- 2x/3 + 3
x + 3 + 3x/4 + 3 + 2x/3 + 3 = 67
x + 3x/4 + 2x/3 = 58
times 12, the LCD
12x + 9x + 8x = 696
x = 24
plug into my present age definitions.
Erna --- x
Wendy --- 3x/4
Lucy ----- 2x/3
their ages now:
Erna --- x + 3
Wendy --- 3x/4 + 3
Lucy ----- 2x/3 + 3
x + 3 + 3x/4 + 3 + 2x/3 + 3 = 67
x + 3x/4 + 2x/3 = 58
times 12, the LCD
12x + 9x + 8x = 696
x = 24
plug into my present age definitions.
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