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## Comment on

Ages of Ebo and Atu## Can you add how to do this

## Sure thing.

Sure thing.

Let A = Atu's age 5 YEARS AGO.

This means 3A = Ebo's age 5 YEARS AGO.

That was 5 YEARS AGO. To find their ages 3 YEARS FROM NOW, we must add 8 years to the above ages.

So, A + 8 = Atu's age 3 YEARS FROM NOW

And 3A + 8 = Ebo's age 3 YEARS FROM NOW

We're told that, 3 YEARS FROM NOW, Abo's age will be TWICE that of Atu's age

In other words, 3A + 8 = 2(A + 8)

Expand: 3A + 8 = 2A + 16

Solve to get: A = 8

This means that Atu was 8 years old 5 YEARS AGO.

And it means EBO was 24 years old 5 YEARS AGO.

So, their CURRENT AGES are: Atu - 13 years old and Ebo - 29 years old

The SUM of their CURRENT ages = 13 + 29 = 42

## Is there a way to solve this

E = 3A + 10

E = 2A + 3

------using the 2nd equation------

E = 2A + 3

E - 3 = 2A

A = E/2 - 3/2 (Substitute this into the first equation)

I get E = 11

## Be careful. You made a

Be careful. You made a mistake when took the equation 3A - E = 10 rewrote it as E = 3A + 10.

Take: 3A - E = 10

Add E to both sides: 3A = E + 10

Subtract 10 from both sides: 3A - 10 = E (you have E = 3A + 10)

Cheers,

Brent

## I have trouble when I work

## There are some extra practice

There are some extra practice questions in the Reinforcement Activities box here: https://www.greenlighttestprep.com/module/gre-word-problems/video/909

## Thanks.

## sir could you share some

## Check out the linked practice

Check out the linked practice questions in the Reinforcement Activities box here: https://www.greenlighttestprep.com/module/gre-word-problems/video/909

## Hi Brent, can you please help

## The details of this question

The details of this question are far too complicated to test the answer choices.

It's important to note that most Problem Solving questions can't be solved by testing the answer choices, but we should always be on the lookout for opportunities to test the answer choices, since that approach can often be much faster.

For this question, we are asked to find the SUM of their ages now.

So, for example, answer choice C tells us that the SUM is 28 years.

Since we only know the SUM of their ages, it's extremely difficult to use this information to test whether C is the correct answer.