Question : Directions: The ratio of present ages of L and N is 7 : 5. If the age of N after seven years will be 32 years, then what is the present age (in years) of L?
Option 1: 49
Option 2: 35
Option 3: 28
Option 4: 42
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Correct Answer: 35
Solution : Given: The ratio of present ages of L and N is 7 : 5
Let L's present age be 7y and N's present age be 5y. The age of N after seven years will be 32 years. ⇒ 5y + 7 = 32 ⇒ 5y = 25 ⇒ y = 5 Therefore, L's present age = 7y = 7 × 5 = 35 years.
Hence, the second option is correct.
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