after 18 years sanjay will be 3 times as old as 4 years ago . find sanjay's present age
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Answer:
15 years
Step-by-step explanation:
let sanjays present age be x
given that sanjays age after 18yrs will be 3 times as old as he was 4 years ago
ie., x + 18 = 3 (x-4)
=> x+18=3x-12
=> 3x-x = 18+12
=> 2x = 30
=> x = 30/2 = 15
ie., Sanjay s present age is 15 yrs
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