- #1
songoku
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Homework Statement
A woman started a business with a workforce of 50 people. Every two weeks the number of people in the workforce increased by 3 people. How many people were there in the workforce after 26 weeks?
Each member of the workforce earned $600 per week. What was the total wage bill for this 26 weeks?
Homework Equations
Un = a + (n - 1) d
Sn = n/2 (a + Un)
The Attempt at a Solution
Number of terms = 26 / 2 = 13
Number of people = 50 + (13 - 1) x 3 = 86 --> wrong The answer is 89. I don't understand
first week = 50 people
second week = 50 people
third week = 53 people
and so on...
Then, total wage bill = 13/2 (50 + 89) x 2 x 600 = 1 084 200 ---> wrong. The answer is 1 341 600
Please help me. Thanks