Mr. Jones sold two pens at $1 each. Based on the cost, his profit one was 50% and his loss on the other was 40%. On the sale of the pipes. Find the amount of his profit or loss?  Choose the correct choice from the following choices.
A) lost 10 cents	B) lost 4 cents	C) broke even	D) gained 4 cents	E) gained 40 cents
50 % profit on $ 1   = $ 50/100 × 1   = $ 0.50× 1   = $ 0.50   Similarly, 40 % loss on $ 1   = $ 40/100 × 1   = $ 0.40× 1   = $ 0.40   Therefore, in one pen his profit is $ 0.50 and in the other pipe his loss is $ 0.40   So profit by amount $0.40.   Answer is gained 40 cents.
<result>E</result>
Mr. Jones sold two pens at $1 each. Based on the cost, his profit one was 50% and his loss on the other was 40%. On the sale of the pipes. Find the amount of his profit or loss?