Solving Equations with Linear Expressions on One Side and Numbers on the Other Side
2 years back ...
Question
2 years back the age of Sushil's father was 7 times Sushil's age then. If the sum of their present age is 36 years, what is the age of Sushil's father at present in years?
A
28
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B
30
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C
40
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D
None of these
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Solution
The correct option is B30 Let the present age of Sushil be x years.
Then, present age of his father =(36−x) years. 2 years back, Sushil's age =(x−2) years. and Father's age =(36−x)−2 years =(34−x) years Given, (34−x)=7(x−2) ⇒34−x=7x−14
⇒34+14=7x+x ⇒8x=48
⇒x=6 ∴ Sushil's father's present age =(36−6) years =30 years.