20 years ago, when my parents got married, their average age was 23 years, now the average age of my family, consisting of myself and my parents only is 35 years. My present age is ,
A
34 years
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B
42 years
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C
24 years
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D
16 years
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Solution
The correct option is D16 years Let my age be x years. Sum of ages of my parents 20 years ago=46. Sum of present ages=46+20+20=86 ( since both mother's and father's ages increase by 20 years each ) =86+x3=34 or x=16 years.