Mathipurchasedawalkmanfrom herfriend.ShethensolditforRs.90.Haditbeensoldfor
Rs.105.Thegainwouldhavebeen1/4oftheformerloss.Whatisthecostpriceofthe
walkman?
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Answer:
102 rs.
Step-by-step explanation:
105- CP = 1/4 ( CP -90)
420-4CP = CP -90
5CP = 510
CP = 102
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