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Mary is twice older than her sister. In 5years time,she will be years older than her sister. find how old are they both now?
Most Upvoted Answer
Mary is twice older than her sister. In 5years time,she will be years ...
Given Information:
Mary is twice older than her sister.
In 5 years, Mary will be 10 years older than her sister.
Let's solve the problem step by step:
Step 1: Set up equations for their current ages
Let's assume Mary's current age is M and her sister's current age is S.
According to the given information:
M = 2S (Mary is twice older than her sister)
Step 2: Set up equations for their ages in 5 years
In 5 years, Mary will be M + 5 years old and her sister will be S + 5 years old.
According to the given information:
M + 5 = S + 5 + 10 (Mary will be 10 years older than her sister in 5 years)
Step 3: Solve the equations
Substitute the value of M from the first equation into the second equation:
2S + 5 = S + 15
S = 10
Now, substitute the value of S back into the first equation to find Mary's age:
M = 2(10) = 20
Step 4: Final Answer
Mary is currently 20 years old and her sister is currently 10 years old.
Therefore, Mary is 20 years old and her sister is 10 years old.
Mary is twice older than her sister.
In 5 years, Mary will be 10 years older than her sister.
Let's solve the problem step by step:
Step 1: Set up equations for their current ages
Let's assume Mary's current age is M and her sister's current age is S.
According to the given information:
M = 2S (Mary is twice older than her sister)
Step 2: Set up equations for their ages in 5 years
In 5 years, Mary will be M + 5 years old and her sister will be S + 5 years old.
According to the given information:
M + 5 = S + 5 + 10 (Mary will be 10 years older than her sister in 5 years)
Step 3: Solve the equations
Substitute the value of M from the first equation into the second equation:
2S + 5 = S + 15
S = 10
Now, substitute the value of S back into the first equation to find Mary's age:
M = 2(10) = 20
Step 4: Final Answer
Mary is currently 20 years old and her sister is currently 10 years old.
Therefore, Mary is 20 years old and her sister is 10 years old.
Community Answer
Mary is twice older than her sister. In 5years time,she will be years ...
20 years and10 years
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Mary is twice older than her sister. In 5years time,she will be years older than her sister. find how old are they both now?
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Mary is twice older than her sister. In 5years time,she will be years older than her sister. find how old are they both now? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Mary is twice older than her sister. In 5years time,she will be years older than her sister. find how old are they both now? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mary is twice older than her sister. In 5years time,she will be years older than her sister. find how old are they both now?.
Mary is twice older than her sister. In 5years time,she will be years older than her sister. find how old are they both now? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Mary is twice older than her sister. In 5years time,she will be years older than her sister. find how old are they both now? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mary is twice older than her sister. In 5years time,she will be years older than her sister. find how old are they both now?.
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