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July 2020

1. The average age of three boys is 15 years. If their ages are in ratio 3:5:7, the age of the youngest boy isA. 21 yearsB. 18 yearsC. 15 yearsD. 9 years (Answer)E. 12 yearsAnswer: Option DSolution: Sum of ages of three boys = 45 yearsNow, (3x+5x+7x)...

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