Question

Ali is six times as old as Rihanna. How old was Ali when Rihanna was born if sum of their ages after 7 years is 49.

Answer 1

Step-by-step explanation:

Let Rihanna's  current age be x years

∴ Ali's  current age = 6x years

After 7 years,

Rihanna's age = (x+7) years

Ali's age = (6x+7) years

According to question,

⇒(x+7)+(6x+7)=49

⇒7x+14=49

⇒7x=35

⇒x=5

∴Rihanna's age = 5 years

Ali's age = 30 years

∴Ali's age when Rihanna was born = (30-5) years

                                                          = 25 years