When 0.36 is written in simplest form, the sum of the numerator and the denominator is :

A) 15 | B) 34 |

C) 64 | D) 13 |

Explanation:

0.36 = 36/100 = 9/25.

Sum of the numerator and denominator is 9 + 25 = 34

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Subject: Decimal Fractions - Quantitative Aptitude - Arithmetic Ability

Which of the following fractions is greater than 3 /4 and less than 5 / 6 ?

A) 3 / 5 | B) 4 / 5 |

C) 7 / 5 | D) 9 / 5 |

Explanation:

3 /4 = 0.75, 5/6 = 0.833, 1/2 = .5, 2/3 = 0.66, 4/5 = 0.8, 9/10 = 0.9.

clearly 0.8 lies between 0.75 and .833.

4/5 lies between 3/4 and 5/6..

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Subject: Decimal Fractions - Quantitative Aptitude - Arithmetic Ability

If 47. 2506 = 4*A + 7/B + 2*C + 5/D + 6*E, then the value of 5*A + 3*B + 6*C + D + 3*E is :

A) 55.6003 | B) 53.603 |

C) 153.6003 | D) 213.003 |

Explanation:

4*A + 7/B + 2*C + 5/D + 6*E =47.2506

=> 4 * A + 7/B + 2 *C + 5/D + 6*E = 40 + 7 + 0.2 + 0.05 + 0.0006

Comparing the terms on both sides, we get :

4*A =40, 7/B = 7, 2*C = 0.2, 5/D = 0.05, 6*E = 0.0006

A = 10,

B = 1,

C = 0.1,

D = 100,

E = 0.0001.

5*A + 3*B + 6*C + D + 3*E =(5*10) + (3*1) + (6*0.1) +100 +(3*0.0001)

=50 + 3 + 0.6 + 100 + 0.003 = 153.6003.

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Subject: Decimal Fractions - Quantitative Aptitude - Arithmetic Ability

A tailor has 37.5 metres of cloth and he has to make 8 pieces out of a metre of cloth. How many pieces can he make out this cloth ?

A) 300 | B) 360 |

C) 400 | D) 450 |

Explanation:

Length of each piece = (1/8) m = 0.125 m

Required no of pieces = (37.5/0.125) = (375 * 100) / 125 = 300.

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Subject: Decimal Fractions - Quantitative Aptitude - Arithmetic Ability

If 1.5x = 0.04y, then the value of ( (y - x) / (y+x) ) is :

A) 73/77 | B) 7.3/77 |

C) 730/77 | D) 7300/77 |

Explanation:

x / y = 0.04 / 1.5 = 4 / 150 = 2 / 75.

= > ( (y - x) / (y+x) ) = (1 - (x / y)) / ( 1 + ( x / y)) = (1 - 2/75) / (1 + 2/75) = 73/77...

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Subject: Decimal Fractions - Quantitative Aptitude - Arithmetic Ability