If selling 12 oranges per rupee gives 20% loss, sell how many for 20% profit?
8
The answer
CP of 12 = 1/0.8 = 1.25. For 20% profit: SP=1.25x1.2=1.5. Actually: At 12/rupee with 20% loss, CP=1.25/12 per orange. For 20% profit: SP per orange=CP x 1.2. Number per rupee = 1/(CP x 1.2) = 8.
Source: Verified
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