Question

Measuring the areas of different currency notes.
Consider the currency notes of denominations 10, 20, 50,100 and 500 find out the areas of these notes and write in the table given below:

Currency Notes	Length (cm)	Breadth (cm)	Area ( cm2)
10
20
50
100
500

Answer 1

Measuring the areas of different currency notes as follows:

For- 10 Rs

• $\mathrm{A}=\mathrm{l}\times \mathrm{b}=12.3\times 6.3=77.49{\mathrm{cm}}^2$

For- 20 Rs

• $\mathrm{A}=\mathrm{l}\times \mathrm{b}=12.9\times 6.3=81.27{\mathrm{cm}}^2$

For- 50 Rs

• $\mathrm{A}=\mathrm{l}\times \mathrm{b}=13.5\times 6.6=89.1{\mathrm{cm}}^2$

For- 100 Rs

• $\mathrm{A}=\mathrm{l}\times \mathrm{b}=14.2\times 6.6=93.72{\mathrm{cm}}^2$

For- 500 Rs

• $\mathrm{A}=\mathrm{l}\times \mathrm{b}=15.0\times 6.3=94.5{\mathrm{cm}}^2$

Currency Notes	Length (cm)	Breadth (cm)	Area ( cm2)
10	12.3 cm	6.3 cm	77.49 cm2
20	12.9 cm	6.3 cm	81.27 cm2
50	13.5 cm	6.6 cm	89.10 cm2
100	14.2 cm	6.6 cm	93.23 cm2
500	15.0 cm	6.3 cm	94.50 cm2