Question

20 rs. 7 paise and 21 rs.75 paise in decimals

Answer 1

Rs 20 and 7 paise = 20.07  (convert Rs. 20 = 2000paise +7paise= 2007paise = 20.07ruppe. Do this method when you are confused. like this you can do kg, litre etc)

Rs 21 and 75 paise = 21.75

Answer 2

20 rs. 7 paise = 20.07 rupees and 21 rs. 75 paise = 21.75 rupees.

Step-by-step explanation:

Given:

As we know that  

1 rupee = 100 paise

$1 paise=\frac{1}{100} rupees$          [1]

So

20 rupees 7 paise,

⇒ $20 + 7 \times \frac{1}{100}$

⇒ $20 + \frac{7}{100}$

⇒ 20 + 0.07

⇒ 20.07 rupees.

Also, 21 rupees 75 paise,

⇒ $21 + 75\times\frac{1}{100}$

⇒ $21 + \frac{75}{100}$

⇒ 21 + 0.75

⇒ 21.75 rupees.