Aptitude  Decimal Fraction  Practice Q&A

1. When 0.232323..... is converted into a fraction, then the result is:

$ \dfrac{1}{5} $ $ \dfrac{2}{9} $ $ \dfrac{23}{99} $ $ \dfrac{23}{100} $

2. $\dfrac{.009}{?}$=.01

.0009 .09 .9 9

3. The expression (11.98 \times 11.98 + 11.98 \times x + 0.02 \times 0.02) will be a perfect square for $x$ equal to:

0.02 0.2 0.04 0.4

4. $\dfrac{(0.1667)(0.8333)(0.3333)}{(0.2222)(0.6667)(0.1250)}$ is approximately equal to:

2 2.40 2.43 2.50

5. 3889 + 12.952 - ? = 3854.002

47.095 47.752 47.932 47.95

6. 0.04 x 0.0162 is equal to:

6.48 x 10-3 6.48 x 10-4 6.48 x 10-5 6.48 x 10-6

7. $\dfrac{4.2 \times 4.2 - 1.9 \times 1.9}{2.3 \times 6.1}$ is equal to :

0.5 1.0 20 22

8. If $\dfrac{144}{0.144}$=$\dfrac{14.4}{x}$, Then the value of $x$ is:

0.0144 1.44 14.4 144

9. The price of commodity X increases by 40 paise every year, while the price of commodity Y increases by 15 paise every year. If in 2001, the price of commodity X was Rs. 4.20 and that of Y was Rs. 6.30, in which year commodity X will cost 40 paise more than the commodity Y ?

2010 2011 2012 2013

10. Which of the following are in descending order of their value ?

$ \dfrac{1}{3} $,$ \dfrac{2}{5} $,$ \dfrac{3}{7} $,$ \dfrac{4}{5} $,$ \dfrac{5}{6} $,$ \dfrac{6}{7} $ $ \dfrac{1}{3} $,$ \dfrac{2}{5} $,$ \dfrac{3}{5} $,$ \dfrac{4}{7} $,$ \dfrac{5}{6} $,$ \dfrac{6}{7} $ $ \dfrac{1}{3} $,$ \dfrac{2}{5} $,$ \dfrac{3}{5} $,$ \dfrac{4}{6} $,$ \dfrac{5}{7} $,$ \dfrac{6}{7} $ $ \dfrac{6}{7} $,$ \dfrac{5}{6} $,$ \dfrac{4}{5} $,$ \dfrac{3}{7} $,$ \dfrac{2}{5} $,$ \dfrac{1}{3} $

 

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