# Easy question about series: starting salary of 15000 but w/ fixed annual pay rise d

#### bobix

After considering the offer employer ask for different payment this has the same starting salary of 15000 but with the fixed annual pay rise $d. find d if the total amount paid over 10 years (217500) is to be the same under the two schemes 67500 My answer is 15000*10 + 67500 *10 = 217500 The answer the end of the mei book is 1496 can someone help explaining this thanks #### tkhunny ##### Moderator Staff member After considering the offer employer ask for different payment this has the same starting salary of 15000 but with the fixed annual pay rise$d.
find d if the total amount paid over 10 years (217500) is to be the same under the two schemes 67500

My answer is 15000*10 + 67500 *10 = 217500

The answer the end of the mei book is 1496

can someone help explaining this

thanks
I think you will need a better translation. Guessing...

15
15+d
15+2d
15+3d
...
15+9d
-----------
And the total is?