Finding fixed amount deposited

Mathematics
Tutor: None Selected Time limit: 1 Day

Tom is saving $3000.  He deposits $200, then a fixed amount every month for 5 months. Then gets a check for 3 times the total amount saved so far. When depositing the check, he now has $400 extra.  What was the fixed amount deposited each month?

May 17th, 2015

This is an algebra sum and can do it for you :)

May 17th, 2015

Do you know how to solve it?  Can you show me?

May 17th, 2015

Yes I can show you work. Let me do it on paper

May 17th, 2015

Hello? Are you still there?

May 17th, 2015

Let the amount he saved per month be $ x

So, for 5 months he deposits $5x

before he deposited $200 , so now he has saved $200+5x

now he gives a check for 3 times of total amount saved so far. so check value = 3 * (200+5x) = 600+15x

now he has got $400 eextra = $400 + 3000 = $3400

so 600+15x+200+5x = 3400 

=> 800 + 20x = 3400

=> 20x = 3400 - 800 

=> 20x = 2600

=> x = 2600/20 = 130

So per month he saved $ 130 (ans )

best the answer :)

May 17th, 2015

Perfect, it checks correctly!  Thank you!

May 17th, 2015

So, please best the answer :)

May 17th, 2015

Are you there ?

May 17th, 2015

Are you studying on the go? Check out our FREE app and post questions on the fly!
Download on the
App Store
...
May 17th, 2015
...
May 17th, 2015
Dec 9th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer