7 Answers

You have neglected to tell me for how long the money is invested.

When you are dealing with the "Simple Interest Problem" you should know the basic component required to solve it.

i.e . Principal [P], Simple Interest [S. I. or I], Time [ T] in years and Rate [R] in percent. Beside that is the amount [A]

And the relation connecting them is I =PTR/100

Similarly, A = P + I

You can derive other formula using the relation above.

Now you can help yourself and your friends too.

this is a math problem, not a word problem....

Still waiting for the investment period.....

You will earn $1500 at the end of one year. 

HI   I ASUME THE MONIES ARE INVESTED FOR A YEAR

IF YOU HAVE £100 POUNDS AND INVEST IT FOR ONE YEAR AT 3% SIMPLE INTEREST YOU WOULD RECIEVE  £3 POUNDS AS 3% MEANS  3 ONE HUNDRETHS    5% MEANS  5 ONE HUNDRETHS   ETC

SO YOU QUESTION   50000 X 3%    =     50000 X 3/100   =    500 X 3    =       1500

                                        50000 X 5%    =     50000 X 5/100   =   500 X 5   =   2500

I HOPE THIS HELPS YOU

If you give the time you invest you could also be getting what we call counpound interst over the interest for the time you invest your money.