Question

Kelsi's mom, Sue, is 8 times as old as Kelsi. In 10 years , Sue will be 3 times as old as Kelsi. How old are Kelsi and Sue now?

Answer 1

8x+10=3(X+10)
8x+10=3x+30
5x= 20
X=4
Kelsi 4
Mom 32

Answer 2

Answer: The present age of Kelsi = 4 years.

The present age of Sue=32 years.

Explanation:

Let x be the present age of Kelsi.

Then, Sue's present age = 8x

According to the question, after 10 years Kelsi's's age = x+10

Now, the Sue's age after 10 years will be given by :-

`8x+10=3(x+10)\\\\\Rightarrow\ 8x+10=3x+30\\\\\Rightarrow8x-3x=30-10\\\\\Rightarrow5x=20\\\\\Rightarrow\ x=4`

Hence, The present age of Kelsi = 4 years.

The present age of Sue = 8(4)=32 years.