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If John is twice as old as Mary then how old is Mary if John is 4?
Wiki User
∙ 15y ago
Mary would be two years. This is a division problem 4 (John's age)/2 (two times older)=2(mary's age.)
Wiki User
∙ 15y ago
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Mike is three times as old as his little sister Mary. In 4 years he will be twice as old as Mary. How old is Mike?
Mike is 12. Mary is 4. In 4 years, Mike will be 16 and Mary will be 8. So Mike will be twice as old as she is in four years.
John is twice as old as his brother Four years ago he was four times as old as his brother Find their present ages?
The ages are 8 and 4
John is twice as old as his son In 42 years the ratio of their ages will be 4.3 what is the son's current age?
42/4 = 10.510.5*3=31.5
Krishna twelve years old is three times as old as his brother. How old will Krishna be when he is twice as old as his brother?
Krishna is 12 and three times as old as his brother, who must be 4. In 4 years time when Krishna is 16 he will be twice as old as his brother, who will then be 8.
Mary is sixteen and is four times as old as her brother how old is the brother?
her brother is 4 years old
Mike is three times as old as his little sister Mary in 4 years he will be twice as old as Mary how old is Mary?
Mary is 4 years old. [A+]
Mary is n years old If John is twice as old what is his age now What was his age 4 years ago?
^^^ I have to write a Algebraic Statement
Mike is three times as old as his little sister Mary. In 4 years he will be twice as old as Mary. How old is Mike?
Mike is 12. Mary is 4. In 4 years, Mike will be 16 and Mary will be 8. So Mike will be twice as old as she is in four years.
Mary is 4 years older than John Mary is 13 How old is John?
John is 9 years old!!=)
Mike is three times as old as his little sister Mary In 4 years he will be twice as old as Mary How old is Mike?
12,4...16,8
Mike is three times as old as his sister Mary in 4 years he will be twice as old as Mary how old is Mary?
Write and solve two simultaneous equations. a = Mary's age b = Mike's age Age now: b = 3a Age in 4 years: b + 4 = 2(a + 4)
Mary is 24 years old She is twice as old as Ann was when she was as old as Ann is now How old is Ann now?
Ann's 18.We can check this answer easily. Right now, Mary is 24 and Ann is 18. That means that six years ago, Mary was 18 and Ann was 12. In other words, Mary is now twice as old (24) as Ann was (12) when Mary was as old as Ann is now (18).On the other hand, this is a classic brainteaser from the 1903 New York Times -- so perhaps by now, Ann is actually well over a century old!---Note that for any given age Mary = M, Ann will be 3/4 as old (3/4 M).This is the result of the difference being 1/2 of 1/2 of Mary's age.e.g. if Mary is 60, Ann is 45So 15 years ago, Mary was 45 and Ann was 30, and Mary at 60 is twice as old as that.
John is twice as old as his brother Four years ago he was four times as old as his brother Find their present ages?
The ages are 8 and 4
John is 4 years older than Tim. 4 years ago John's age was twice Tim's age how old are they?
John is 12, and Tim is eight. Four years ago they would've been eight and four.
Ken is nine years younger than John In four years John will be twice as old as Ken How old are they now?
ken is 9 and john is 18. 4 years ago ken was 5 and John was 14. they had an age difference of 9 years.
Mike is three times as old as his little sister.Mary In 4 years.he will be twice as old as Mary How old is Mike?
M = 3sand(M+4) = 2 (s+4)Substitute the first equation in the second one.(3s+4) = 2 (s+4)3s + 4 = 2s + 83s = 2s + 4s = 4M = 3s = 12
John is twice as old as his son In 42 years the ratio of their ages will be 4.3 what is the son's current age?
42/4 = 10.510.5*3=31.5
