Question

Twenty years ago, my age was 1/3 of what it is now. What is my age

Solution

20 years ago my age was 1/3 of what it is now

:

Let a = age now

a/3 = a - 20

multiply both sides by 3

a = 3(a-20)

a = 3a - 60

60 = 3a - a

60 = 2a

a = 30 yrs now

:

Let a = age now

a/3 = a - 20

multiply both sides by 3

a = 3(a-20)

a = 3a - 60

60 = 3a - a

60 = 2a

a = 30 yrs now

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