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they both mean the same thing , though by the age of 6 is usually used more for an accomplishment . for example by the age of 6 he knew how to ride a bike. by the age of 6 sounds more intelligent and exciting.
A different answer: "By the age of six" means at any age up to and including six, while "At the age of six" means only during that one year.
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On my last birthday my friend said to me In 15 years time your age will be the square of your age 15 years ago Can you work out how old I am?
Age=21! 21 - 15 = 6 6 x 6 = 36 21 + 15 = 36 Age=21
What is the age of Anita now when the square of Anita's age 6 years ago is equal to her age in 6 years time showing work?
Let Anita's age now be x If: (x-6)^2 = x+6 => x^2-12x+36 = x+6 => x^2-13x+30 = 0 Solving the above quadratic equation: x = 3 or x = 10 Therefore Anita's age now must be 10 years of age
The present age difference between the father and son is 26 years before 6 yrs fathers age was twice the age of the sons age and sons age was half the fathers age what are the present ages?
6 years ago, they were 26 and 52.Now they're 32 and 58.
2 you are currently 5 times as old as your son In 6 years time you will be three times as old as he will be then What are your ages?
If x is the age of the son, then 5x would be the age of the father. In 6 years, the son would be x + 6 years old, where the father would be 3(x + 6) years old. Since the original age of the father is 5x, then in 6 years the father could also be said to be 5x + 6 years old. Setting these two expressions for the father's age as an equation, we then can solve for x, the son's age. 3(x + 6) = 5x +6 3x + 18 = 5x + 6 2x = 12 x = 6 The original age of the son is 6 and of the father (5x) is 30 years old. In 6 years, the son would be 12 and the father would be [3x + 18 or 5x + 6] 36 years old.
What times what equals your age?
11.5 times 6 .
