Counting Money

Riya Goes to the Market to Buy a Few Pens. Find the Cost of 10 Pens in Rupees, If the Cost of 1 Pen Is 16 Anna.

Here given, the cost of 1 pen is 16 annas.
Then, the cost of 10 pens is
= (10 × 16) anna
= 160 annas

Now, we know that 16 annas = 1 rupees
Then, 160 annas = 16016 rupees = 10 rupees
The cost of 10 pens is 10 rupees.