Mr. Johnson's had a monthly salary of 955 USD since the beginning of the year. From which month was his salary increased by 52 USD, when in the year he earned 11824 USD (enter as a number from 1 to 12)?

Correct answer:

n =  6

Step-by-step explanation:

95512+(13n)52=11824 (13n)52=364 13n=7  n=6

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