Question

Sara is 33 years younger than Rolando. The sum of their ages is 105. Select the system of equations if Sara’s age is represented by S and Rolando’s age is represented by R.

Answer 1

Given:

Sara's age is represented by S and Ronaldo's age is represented by R.

Since,

Sara is 33 years younger than Ronaldo, then;

S= R - 33

Now, the sum of ages of Sara and Ronaldo is 105 then

`R+S=105`

Hence, from above,

`\begin{gathered} S+R=105 \\ S=R-33 \end{gathered}`

Therefore, second option is correct.