Question

Alley bought 1 pound of potatoes costing $4 from a local grocery store last week. Her final bill included an additional sales tax 8%. The next week alley found that the price for a pound of potatoes had gone up to $6. What is the percentage increase in the cost of a pound of potatoes, including the sales tax?

Answer 1

Answer: 54%

Step-by-step explanation:

Given: The cost of 1 pound of  potato in  a local grocery store last week= $4

The cost of 1 pound of  potato in  a local grocery store last week after 8 % tax= $4+8% of $4

$=4+0.08\times4=4+0.32=\ 4.32$

The cost of 1 pound of  potato in  a local grocery store next week= $6

The cost of 1 pound of  potato in  a local grocery store next week after 8 % tax= $6+8% of $6

$=6+0.08\times6=6+0.48=\ 6.48$

The percentage increase in the cost of a pound of potatoes, including the sales tax will be given by :-

$P=\frac{\text{ increase in cost}}{\text{cost last week}}\times100\\\\\Rioghtarrow\ P=\frac{6.48-4.32}{4}\times100\\\\\Rightarrow\ P=\frac{2.16}{4}\times100\\\\\Rightarrow\ P=54\%$

Answer 2

$6.00 X 8%  $6.48

this is the answer. hope this helps