Question

Construct a word problem on simultaneous linear equations in two variables so that the value of one of the variables will be 18 (persons, rupees, metres, years etc.) and solve it.

Answer 1

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Answer 2

Answer:

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Here your answer..

Step-by-step explanation:

ANSWER:

Example:The sum of present ages of Madhu and Raju is 11years.Madhu is elder than Raju by 9 years.Find their present ages.

Solution:Let the present age of Madhu be x years and the age of Raju be y years.

∴x+y=11 .....(1)

x−y=9 .......(2)

Adding (1) and (2) we get

2x=20

∴x=

2

20

=10

And x+y=11

∴10+y=11

∴y=11−10=1

∴ Present age of Madhu is 10years and of Raju is 1 year.

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