RD Sharma Solutions Class 7 Percentage Exercise 11.3

RD Sharma Solutions Class 7 Chapter 11 Exercise 11.3

RD Sharma Class 7 Solutions Chapter 11 Ex 11.3 PDF Download

Exercise 11.3

 Q1. Express each of the following per cents as decimals:

(i) 12.5%

\(\frac{12.5}{100}\\=0.125\)

(ii) 75%

\(\frac{75}{100}\\=0.75\)

(iii) 128.8%

\(\frac{128.8}{100}\\=1.288\)

(iv) 0.05%

\(\frac{0.05}{100}\\=0.0005\)

Q2. Express each of the following decimals as per cent:

(i) 0.004

\(\frac{4}{1000}\\=\left(\frac{4}{1000}\times100 \right )\%\\=0.4\%\)

(ii) 0.24

\(\frac{24}{100}\\=\left(\frac{24}{100}\times100 \right )\%\\=24\%\)

(iii) 0.02

\(\frac{2}{100}\\=\left(\frac{2}{100}\times100 \right )\%\\=2\%\)

(iv) 0.275

\(\frac{275}{1000}\\=\left(\frac{275}{1000}\times100 \right )\%\\=27.5\%\)

 

Q3. Write each of the following as whole numbers or mixed numbers:

(i) 136%

\(=\frac{136}{100}\\=\frac{34}{25}\)

(ii) 250%

\(=\frac{250}{100}\\=\frac{5}{2}\)

(iii) 300%

\(=\frac{300}{100}\\=3\)