# Decimal Fraction

## Decimal Fraction

Congratulations - you have completed *Decimal Fraction*.

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Question 1 |

What decimal of an hour is a second ?

.0025 | |

.0256 | |

.00027 | |

.000126 |

Question 1 Explanation:

Required decimal =1/(60 x 60)= .00027

Question 2 |

if 2994 ÷ 14.5 = 172, then 29.94 ÷ 1.45 = ?

0.172 | |

1.72 | |

17.2 | |

172 |

Question 2 Explanation:

29.94/1.45<==>299.4/14.5
==>(2994/14.5)x(1/10)
=172/10(via Q)
= 17.2

Question 3 |

.009/? = .01

.0009 | |

.09 | |

.9 | |

9 |

Question 3 Explanation:

Let .009/x= .01; Then x =.009/.01=.9

Question 4 |

3889 + 12.952 - ? = 3854.002

47.095 | |

47.752 | |

47.932 | |

47.95 |

Question 4 Explanation:

Let 3889 + 12.952 - x = 3854.002.
Then x = (3889 + 12.952) - 3854.002
= 3901.952 - 3854.002 = 47.95.

Question 5 |

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 |

Question 5 Explanation:

Suppose commodity X will cost 40 paise more than Y after z years.
Then, (4.20 + 0.40z) - (6.30 + 0.15z) = 0.40
==> 0.25z = 0.40 + 2.10
==>z =2.50/.25=250/25= 10.
X will cost 40 paise more than Y 10 years after 2001 i.e., 2011.

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