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After 17 years, Chelsea will be thrice as old as she is 5 years ago. Find her present age.1). 13 years2). 14 years3). 15 years4). 16 years |
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Answer» Let her present age be ‘X’ YEARS Then, 5 years AGO her age was (X - 5) and after 17 years her age WOULD be (X + 17) ⇒ (X + 17) = 3(X - 5) ⇒ X + 17 = 3X - 15 ⇒ 2X = 17 + 15 = 32 ⇒ X = 16 ∴ Chelsea’s present age is 16 years |
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