Mathematics, 11.02.2020 16:28, wyattgrubb00
A person buys q1, q2, q3 and q4 units of four goods whose prices per unit are, re- spectively, $1, $2, $3 and $4. What is the total expenditure? What will be the total expenditure if the prices change to $4, $3, $2 and $1 per unit respectively?
Answers: 2
![\[q1 + 2q2+3q3+4q4\] ](/tpl/images/0506/5446/90558.png)
![\[4q1 + 3q2+2q3+q4\] ](/tpl/images/0506/5446/95c47.png)
![\[\sum (quantity*unitprice)\]](/tpl/images/0506/5446/616f7.png)
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A person buys q1, q2, q3 and q4 units of four goods whose prices per unit are, re- spectively, $1, $...
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