Question

De’Shaun is 5 years younger than Nemo. Adela is twice as old as Nemo. Jefferson is 3 times as old as De’Shaun. Altogether their ages total 50. Find each person’s age

Answer 1

Nemo: 10

De'Shaun: 5

Adela: 20

Jefferson: 15

Explanation:

Let Nemo's age be x

De'Shaun's age= x-5

Adela's age= 2x

Jefferson's age= 3(x-5)

= 3x-15

x+x-5+2x+3x-15= 50

7x-20= 50

7x= 50+20

7x= 70

x= 10

Nemo's age= 10

De'Shaun's age= 10-5

= 5

Adela's age= 2(10)

= 20

Jefferson's age= 3(10)-15

= 30-15

= 15

Answer 2

Age of Nemo = 10 years

De'shaun's age = 5 years

Adela's age = 20 years

Jefferson's age = 15 years

Explanation:

Age of Nemo = x years

So, De'shaun's age = x - 5

Adela's age = 2*x = 2x

Jefferson's age = 3* (x -5) = 3*x - 3*5 = 3x -15

Total age = 50

x + x - 5 + 2x + 3x - 15 = 50 {Combine like terms}

x + x + 2x + 3x - 5 - 15 = 50

7x - 20 = 50

7x = 50 + 20

7x = 70

x = 70/7 = 10

Age of Nemo = 10 years

De'shaun's age = 10 - 5 = 5 years

Adela's age = 2* 10 = 20 years

Jefferson's age = 3*10 -15 = 30 - 15 = 15 years