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Standard VII

Mathematics

Addition of Algebraic Expressions

Question 54Th...

Question

Question 54

The difference between the ages of two sisters Leela and Yamini is a variable.

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Solution

False

A variable is a letter that represents an unknown quantity which can take any value. Difference between the ages of two sisters Leela and Yamini is not a variable because Leela's and Yamini's ages are fixed.

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Question 54

The difference between the ages of two sisters Leela and Yamini is a variable.

The difference between the ages of two sisters is 10 years. 15 years ago their ages were in the ratio 2 :1. Find the ratio of their ages 15 years hence.

Q. The difference in age between a girl and her younger sister is

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16 .

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Q. The difference between the ages of two sisters is

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years ago, the elder one was twice as old as the younger one, find their present ages.

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Addition of Algebraic Expressions

Standard VII Mathematics

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Question 54 The difference between the ages of two sisters Leela and Yamini is a variable.

False A variable is a letter that represents an unknown quantity which can take any value. Difference between the ages of two sisters Leela and Yamini is not a variable because Leela's and Yamini's ages are fixed.

Question 54

The difference between the ages of two sisters Leela and Yamini is a variable.

False

A variable is a letter that represents an unknown quantity which can take any value. Difference between the ages of two sisters Leela and Yamini is not a variable because Leela's and Yamini's ages are fixed.