The marked price of a watch in a shop is Rs.6,000.If 10% is given as discount,how much does a customer have to pay?

M.P=Rs.6000

Sales tax=10%

S.P including sales tax=6000+

100

10

×600

⇒6000+600=Rs.6600

Discount=15%

∴ S.P after discount=6600−15%of6600

⇒6600−

100

15

×6600

⇒6600−990=Rs.5610

Explanation:

Data given

temperature =700c

Density=10.35g/cm^3

but

Nv is the number of vacant site and N is the number of lattice site.

Since the number of lattice site can also b computed as

if we substitute the value of the number of lattice into the first equation, we arrive at