GMAT Prep Cost ofo machines

[sandeep_chhabra]

2 A | 1 B
===================
Cost 40,000 | 50,000
Down payment(20%) 8,000 | 10,000
-----------------------------------
Remainder 32,000 | 40,000
Finance(40%) 12,800 | 16,000
-----------------------
Total 44,800 | 56,000
Extra cost 11,200


Answer should be 11,200 but its actually 13,200, Can anyone pls correct me.

thanks

[Magellan]

Your total costs are wrong (you have to include the down payement as well).

Total A: 8 + 32 + 12.8 = 52.8
Total B: 10 + 40 + 16 = 66

--> diff is 13.2

[sandeep_chhabra]

Great !!! Thanks..

It was my bad