A traveler changes 150 pounds into rupees at the rate of Rs. 7000 for 100 pounds. He spends Rs. 9060 and changes the remaining amount back to pounds at the rate of 100 pounds to Rs. 7200. How many pounds will he get? Choose the correct choice from the following choices:
A) 18 pounds
B) 20 pounds
C) 25 pounds
D) 30 pounds
E) None of these
Explanation:   Amount of rupees for exchange of 150 pounds = (150/100)*(7000/1) = Rs. 10,500   Out of these Rs.10,500, traveler spent Rs. 9060   Remaining balance in rupees = 10,500 – 9060 = Rs. 1440   Now these Rs. 1440 are exchanged back to pounds with the rate of 100 pounds for Rs. 7200   Amount in pounds = (1440 * 100) / 7200= 
<gadget id="calculator">(1440 * 100) / 7200</gadget>
<output>20</output>
20 pounds   ANSWER: 20 pounds
<result>B</result>
A traveler changes 150 pounds into rupees at the rate of Rs. 7000 for 100 pounds. He spends Rs. 9060 and changes the remaining amount back to pounds at the rate of 100 pounds to Rs. 7200. How many pounds will he get?