Jasmin is 10 years old and Rose is 12 years old. What should be their total ages after n years?

Dear student

jasmin's present age = 10 yrs
Rose's present age = 12 yrs
jasmin's age after n yrs = (10+n) yrs
Rose's age after n yrs = (12+n) yrs
Their total age after n yrs = (10+n) +(12+n) yrs
                                        = (22+2n) yrs
Regards