What is the gross sales for this problem ?? please help ..

ali (Student CA CPT ) (130 Points)

03 March 2014  

Data pretaining toXYZ ltd for the month of march 2012

opening stock         RS 60,000

closing stock          RS 80,000  

Purchases              RS 11,20,000

Returns outwards    RS 30,000

Return Inwards        RS 40,000

Carriage Inwards     RS 10,000

If the gross profit is 20% of net sales, the gross sales for the month of march 2012 is????

 :( plss help me