After 8 years, the age of A’s father will be twice the age of B. If B’s 7th birthday is celebrated 3 years ago, then what is the current age of A?
A7 yearsCorrect AnswerIncorrect Answer
B4 yearsCorrect AnswerIncorrect Answer
C6 yearsCorrect AnswerIncorrect Answer
D5 yearsCorrect AnswerIncorrect Answer
E8 yearsCorrect AnswerIncorrect Answer
Solution
Let A’s age be x years and father’s age be 4x years. Present age of B = 7 + 3 = 10 years After 8 years, => 4x + 8 = 2(10 + 8) => 4x = 36 – 8 => x = 28/4 = 7 years