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Express as rupees using decimals
a) 5 paise
b) 75 paise
c) 20 paise
d) 50 Rs 90 paise
e) 725 paise
Given:
a) 5 paise
b) 75 paise
c) 20 paise
d) 50 Rs 90 paise
e) 725 paise
To do:
We have to express the given as rupees using decimals.
Solution:
We know that,
$Rs.\ 1=100\ paise$
$1\ paise=Rs.\ \frac{1}{100}$
Therefore,
a) $5\ paise=Rs.\ 5\times\frac{1}{100}=Rs.\ \frac{5}{100}=Rs.\ 0.05$
b) $75\ paise=Rs.\ 75\times\frac{1}{100}=Rs.\ \frac{75}{100}=Rs.\ 0.75$
c) $20\ paise=Rs.\ 20\times\frac{1}{100}=Rs.\ \frac{20}{100}=Rs.\ 0.2$
d) $50\ Rs.\ 90\ paise$
$90\ paise=Rs.\ 90\times\frac{1}{100}=Rs.\ \frac{90}{100}=Rs.\ 0.9$
$50\ Rs.\ 90\ paise=Rs.\ (50+0.9)=Rs.\ 50.9$
e) $725\ paise=Rs.\ 725\times\frac{1}{100}=Rs.\ \frac{725}{100}=Rs.\ 7.25$
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