Q.1 Express as rupees using decimals.
(a) 5 paise (b) 75 paise (c) 20 paise (d) 50 rupees 90 paise (e) 725 paise

We know that 100 paise = 1 rupee
\(\therefore \) 1 paisa = \(\frac{1}{100} \)rupees

(a) 5 paise = 5 × \(\frac{1}{100} \) Rupees= \(\frac{5}{100} \) rupees = 0.05 rupees
(b) 75 paise = 75 × \(\frac{1}{100} \)rupees = \(\frac{75}{100} \)rupees = 0.75 rupees
(c) 20 paise = 20 × \(\frac{1}{100} \)rupees = \(\frac{20}{100} \)rupees = 0.2 rupees
(d) 50 rupees 90 paise = 50 + 90 × \(\frac{1}{100} \)rupees =50 + \(\frac{90}{100} \)rupees = 50.9 rupees
(e) 725 paise = 725 × \(\frac{1}{100} \)rupees = \(\frac{725}{100} \)rupees = 7.25 rupees