Respuesta :
Answer: Option 'A' is correct.
Step-by-step explanation:
Since we have given that
Rate of mark down of DVD players = 36%
Rate of mark down of Stereo tuners = 22%
After mark down, the price of DVD players = $41.60
After mark down, the price of Stereo tuners = $69.42
So, we will find the original price of both.
Original price of DVD players is given by
[tex]\dfrac{100-36}{100}\times x=41.60\\\\\dfrac{64}{100}\times x=41.60\\\\ 0.64x=41.60\\\\x=\dfrac{41.60}{0.64}\\\\x=\$65[/tex]
Original price of Stereo tuners is given by
[tex]\dfrac{100-22}{100}\times x=69.42\\\\\dfrac{78}{100}\times x=69.42\\\\ 0.78x=69.42\\\\x=\dfrac{69.42}{0.78}\\\\x=\$89[/tex]
Reduction in price of DVD player is given by
[tex]65-41.60=\$23.4[/tex]
Reduction in price of Stereo tuners is given by
[tex]89-69.42=\$19.58[/tex]
Difference between them
[tex]\$23.4-\$19.58\\\\=\$3.82[/tex]
The DVD player’s price was reduced by $3.82 more than the stereo tuner’s price.
Hence, Option 'A' is correct.