Question 1001623
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D=Todd's age; M=Tom's age=4D
In 5 years, Todd age= D+5
In 5 years, Tom's age=M+5
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(M+5)-1=3(D+5) Substitute for M (M=4D)
4D+5-1=3D+15
4D+4=3D+15
D=11
ANSWER 1: Todd is eleven years old.
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M=4D=4(11)=44
ANSWER 2: Tom is 44 years old.
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CHECK:
(M+5)-1=3(D+5)
(44+5)-1=3(11+5)
49-1=3(16)
48=48
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