ExplanationFind the number of TV sets sold by Store R:Table: 40 in stock

Graph: 50% sold

50% of 40 =

0.50 \times 40 = 20Find the number of TV sets sold by Store T:

Table: 50 in stock

Graph: 90% sold

90% of 50 =

0.90 \times 50 = 45Use the percent change formula to find the approximate percent decrease:

Percent change = decrease \div original number \times 100

(45 - 20) \div 45 \times 100 = 25 \div 45 \times 100 = 0.555 \times 100 = 55.5%Hence option B is correct.
_________________

Sandy

If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test