Question

In January, you deposit $16 in your checking account. Each month, you deposit $15 more than you did the month before. How much money do you deposit in October? A) $151 B) $166 C) $356 D) $835

Answer 1

the correct answer is A 

Answer 2

Sorry I mis-read the question, your answer is 151; Here is how I solved it:
January: $16 
Febuary: 16 + 15 =31 
March :31+15=46
April : 46+15=61
May: 61+15=76
June: 76+15= 91
July: 91+15= 106
August: 106+15= 121
September: 121+15= 136
October:136+15= 151