Five years ago, a boy was 1/5 as old as his father. Thirteen years from now, the boy will be half as old as his father. Find the present ages of the boy and his father

Q: Find the three-digit number that increases by 30% when each of its digits are increases by 1.

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Q: Amina is currently twice as old as her younger brother, Saar. In 4 years, Amina will be 50% older…

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Q: Five years hence, father's age will be three times the age of his son Five years ago,father was…

A: let  father's age= x son's age = y

Q: A boy is one-third as old as his brother and 8 years younger than his sister. The sum of their ages…

A: Let,Boy's age be'x' yearsLet his brother's age be 'y' yearsLet his sister's age be 'z' yearsGiven…

Q: Mr. De Guzman is four times as old as his son. In 16 years he will be only twice as old. What are…

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Q: In 14 years, a child's age will be 7 years less than four times her current age. Find the child's…

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Q: The sum of ages of a father and his son is 45 years. Five years ago, the product of their ages (in…

A: Solve for the present age

Q: If the number of bacteria in a colony doubles every 157 minutes and there is currently a population…

A: This problem can be solved without deriving any general formula

Q: When Athena was 8 years old, she was twice as old as Mario. At present, Athena is 16 years old. What…

A: Find the present age of the Mario

Q: Albert is 16 yrs older than Edward in the present day. The total age of Albert and Edward was 32 yrs…

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Q: I am three times as old as my son ,Five years later,I shall be two and half times as old as my son…

A: Given :I am three times as old as my son. Five years later, I shall be two and half times as old as…

Q: John is 3 years older than Mary. Five years ago he was four times as old as Mary was then. How old…

A: John is 3 years older than Mary. Five years ago he was four times as old as Mary was then. To find…

Q: Cheen is now fives times as old as Monokuma was 5 years ago. If the sum of Monokuma’s and Cheen’s…

A: GIVEN: Cheen is 5 times old as Monokuma was 5 years ago.               sum of Monokuma’s and Cheen’s…

Q: Eight years ago, Zian was 4 times as old as Xander. How old is Xander now if his age is one-half of…

A: Assume that Xander was x years old 4 years ago. So Zian was 4x years old.

Q: A silver coin is 28 years older than a bronze coin. In 6 years, the silver coinwill be twice as old…

A: Let the present age of the bronze coin is = x years  So the age of the silver coin is = (x+28) years…

Q: Saba is x years old. Her brother is 8 years older ,and her sister is 12 years younger than she is.…

A: We are given that Saba is x years old. Her brother is 8 years older. So, her brother's age is x+8.…

Q: An car depreciates (decreases in value) by 20% of its value from the previous year. If the car was…

A: Price of the car is decreases by 20% for every year. Therefore r=20% Price of car is $40,000…

Q: Greg is 22years older than his sister Joan. In 19 years, he will be twice as old as Joan. How old is…

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Q: Adam is 20 years younger than Brian. In two years Brian will be twice as old as Adam. How old are…

A: Given: Adam is 20 years younger than Brian. In two years Brian will be twice as old as Adam. How old…

Q: Ian is 2 years older than Carissa. In 7 years the sum of their ages will be 58. How old is Ian now?

A:

Q: San is 108 year old. Jon is 24 years old. How many years will it take for San to be exactly 4 times…

A: Let x years be needed for San to be exactly 4 times as old as Jon.

Q: The population of Bunny Kingdom is monitored by a bunny enthusiast, who notices that the population…

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Q: Ray is 19years older than his sister Danielle. In 10 years, he will be twice as old as Danielle. How…

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Q: A scientist observed that a certain species of bacteria grew by 11% each hour. How many bacteria…

A: Answer and explanation is given below...

Q: Suppose the value of a car V is related to the number of years since its purchase by the formula V =…

A: Here the value of car  is given V = 25000-2100n After 5 year then n = 5

Q: A collectible baseball card is predicted to increase in value by 6.5% each year. If the baseball…

A: Let us denote x=time , y= value of the card Given that the initial value= $85 and baseball card is…

Q: After my birthday in the year 2010, the number of my years was the same as the sum of digits of the…

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Q: Ana is five years older than Beth. In five years, the product of their ages is 1.5 times the product…

A: Given problem:- Ana is five years older than Beth. In five years, the product of their ages is 1.5…

Q: Kim is 10 years older than Laura. Laura is twice as old as Melissa. If Melissa will be 10 years old…

A:

Q: a town has a population of 18000 and grows at 2% every year. what will be the population after 11…

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Q: Agnes is 6 years older than her sister. She will be twice as old as her sister in 4 years. How old…

A: GIVEN : Agnes is 6 years older than her sister. In 4 years, Agnes will be twice as old as her…

Q: A wool tapestry is 32 years older than a linen tapestry. Twenty years ago, thewool tapestry was…

A: Given: A wool tapestry is 32 years older than a linen tapestry. Twenty years ago, thewool tapestry…

Q: Pat is 20 years older than his son James. In two years Pat will be twice as old as James. How old…

A: Let the age of James = x years Age of pat = (x + 20) years

Q: What is Farah's age twenty years from now if she was x years old 10 years ago?

A: Given thatFarah's age is  x years before 10 years agoTo find Farah's age after 20 years.

Q: Andrea is 3 times as old as Pauline, 10 years from now Andrea will be twice as old as Pauline, How…

A: Let the present age of Pauline be x. Andrea is 3 times as old as Pauline. Therefore the age of…

Q: Sally is 3 times as old as John. 8 years from now, Sally will be twice as old as John. How old is…

A:

Q: A father is 4 times as old as his son. In 20 years the father will be twice as oldas his son. Find…

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Q: Jenny is now 18 and Carmen is 12. How many years ago was Jenny twice as old as Carmen?

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Q: Mary is 24 years old. Mary was twice as old as Ann was when Mary was as old as Ann is now. How old…

A: Note: There is mistake in statement as, statement talks about past in both part. which will not…

Q: 8 years ago, John was 10 years old. How many years from now will he be three times his age from 8…

A: Let the present age of John be X Then as 8 years ago John was 10 years old X-8=10 X=10+8 X=18.

Q: A man is three times as old as his son five years ago; he was five times as old as his son was at…

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Q: Kaden is 1/4 as old as Tom. In 7 years, the sum of their age will be 54. How old is Tom now?

A: Given that Kaden is 1/4 as old as Tom and  In 7 years, the sum of their age will be 54. We need to…

Q: A mother is now three times as old as her daughter. In 4 years, the mother will be four times as old…

A: Let Mother's age now is M years Daughter's age is D years Given mother is now three times as old as…

Q: The size of the wolf population at Isle Royale National Park increases at a rate of 4.3% per year.…

A:

Q: A father is three times as old as his son, and his daughter is 3 years younger than the son. If the…

A: given A father is three times as old as his son, and his daughter is 3 years younger than the son.…

Q: A father is 3 times as old as his son after twelve years his age will be twice as that of his son…

A: Let the son present age is x years, then the age of father is 3x years. from the given…

Q: Four year ago, Gener is three times the age of his son Dan, In 10 years he will be twice his son's…

A:

Q: Fahad is 4year old than huma and ali is 2 years younger than huma. If the sum of there ages is 47…

A: Let, age of Huma= x years So the age of Farhad= (x+4) years The age of Ali is =(x-2) years

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.