Question

Find:

(i) 32% of 425
(ii) $16\frac{2}{3}\%\mathrm{of}16$
(iii) 6.5% of 400
(iv) 136% of 70
(v) 2.8% of 35
(vi) 0.6% of 45

Answer 1

We have:
(i) 32% of 425 = $\left(\frac{32}{100}\times 425\right)=\left(\frac{32\times 17}{4}\right)=\left(8\times 17\right)=136$

(ii) $16\frac{2}{3}\%$ of 16 = $\frac{50}{3}\%$ of 16 = $\left(\frac{50}{3\times 100}\times 16\right)=\left(\frac{1}{6}\times 16\right)=\frac{8}{3}=2\frac{2}{3}$

(iii) 6.5% of 400 = $\left(\frac{6.5}{100}\times 400\right)=\left(\frac{65}{10\times 100}\times 400\right)=\left(\frac{65\times 4}{10}\right)=\frac{260}{10}=26$

(iv) 136% of 70 = $\left(\frac{136}{100}\times 70\right)=\left(\frac{136\times 7}{10}\right)=\left(\frac{952}{10}\right)=95.2$

(v) 2.8% of 35 = $\left(\frac{2.8}{100}\times 35\right)=\left(\frac{28}{10\times 100}\times 35\right)=\left(\frac{14\times 7}{100}\right)=\frac{98}{100}=0.98$

(vi) 0.6% of 45 = $\left(\frac{0.6}{100}\times 45\right)=\left(\frac{6}{10\times 100}\times 45\right)=\left(\frac{3\times 45}{5\times 100}\right)=\left(\frac{3\times 9}{100}\right)=\frac{27}{100}=0.27$