A person borrows Rs. 6000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6 p.a for 2 years. Find his gain in the transaction per year.  Choose the correct choice from the following options.
A) 120 rs	B) 150 rs	C) 160 rs	D) 180 rs	E) 200 rs
Gain in 2 years =   [(6000*6*2)/100]-[(6000*4*2)/100]    720-480= 
<gadget id="calculator"> 720-480</gadget>
<output>240</output>
240   Gain in 1 year=(240/2)= 
<gadget id="calculator">(240/2)</gadget>
<output>120</output>
120 rs   120 rsNSWER:120 rs
<result>A</result>
A person borrows Rs. 6000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6 p.a for 2 years. Find his gain in the transaction per year.