Two electronic musical instruments were purchased for 8000. The first was sold at a profit of 40% and the second at loss of 40%. If the sale price was the same in both the cases, what was the cost price of two electronic musical instruments?	Pick:
A) 2000, 5000
B) 2200, 5500
C) 2400, 5000
D) 2400, 5600
E) None of these
Here, SP1 = SP2   ⇒ 140 CP1 = 60CP2 ⇒ CP1/CP2=6/14=3/7   ∴ CP1 = 3(3+7)×8000=24003(3+7)×8000=2400   and CP2 = 8000 – 2400 = 5600   Answer 2400, 5600
<result>D</result>
Two electronic musical instruments were purchased for 8000. The first was sold at a profit of 40% and the second at loss of 40%. If the sale price was the same in both the cases, what was the cost price of two electronic musical instruments?