Answer:5%
Step-by-step explanation:
Given, cost of two table lamps including tax = $42
Therefore, cost of one table lamp including tax =[tex]\frac{42}{2}[/tex]=21$
Given, cost of one table lamp before tax = $20
Hence tax amount on each lamp = $21 - $20 = $1
Hence tax rate payed[tex]=\frac{\text {tax amount}}{\text {Sale Price}}\times 100[/tex]
[tex]=\frac{1}{20}\times {100}=5\%[/tex]
