1.

The coat price of 6 pen is equal to selling price of 5 pen .find the profit or loss percent.​

Answer»

As we know thatSP=CP+gainGiven 6 times CP is equal to 5 times SP⟹6CP=5SP⟹6CP=5(CP+gain)⟹6CP=5CP+5gain⟹CP=5 gain⟹gain= 51 ×CP= 10020 ×CPGain PERCENT is 20%



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