Question

The cost price of 6pens is equal to selling price of 5pens .Find the profit or loss percent​

Answer 1

Answer:

As we know that

SP=CP+gain

Given 6 times CP is equal to 5 times SP

⟹6CP=5SP

⟹6CP=5(CP+gain)

⟹6CP=5CP+5gain

⟹CP=5 gain

⟹gain= 1 ×CP= 20 ×CP

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5 100

Gain percent is 20%