Question

Find the sum:

$\frac{1}{5}+\frac{1}{25}+\frac{1}{125}=?$

• A. 0.252
• B. 0.248
• C. 0.284
• D. 0.215

Answer 1

Answer:

B. 0.248

$\frac{1}{5}+\frac{1}{25}+\frac{1}{125}$

$=\frac{1\times2}{5\times2}+\frac{1\times4}{25\times4}+\frac{1\times8}{125\times8}$

$=\frac{2}{10}+\frac{4}{100}+\frac{8}{1000}$

$=0.2+0.04+0.008$

$=0.248$