Question

construct word problem on simultaneous linear equations in two variables, so that the value of one variables will be 10 ( on only age) also solve it ​

Answer 1

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=220=10

And x+y=11

∴10+y=11

∴y=11−10=1

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