The actual roof area of a building is 3,60,000 sqm, which

The actual roof area of a building is 3,60,000 sqm, which on a site plan measures 25 sqcm. The scale of the site plan is 1 : ______________

Let the scale of the plan be 1 : Y .

So ,		1		²	=		25 cm²		m² =	1	× 10000 cm²
		Y					360000			360000

=		1		=		1		²
		12000 × 12000				12000

So ,	1	=	1
	Y		12000