A) 1.4 | B) 1.5 |

C) 1.6 | D) 1.7 |

Explanation:

Quantity of pure acid = 20% of 8 litres = ((20/100)*8) litres = 1.6 litres.

A) 50% | B) 5% |

C) 0.5% | D) 0.05% |

Explanation:

1/2 as a percentage means

1/2 = 0.5 in decimal

Now, in percentage means** 0.5 x 100% = 50%.**

A) 38 | B) 42 |

C) 50 | D) 62 |

Explanation:

Let the required number be 'p'

36 of what number is 18 implies 36% of p = 18

=> 36 x p/100 = 18

=> p = 1800/36

=> p = 50.

Hence, **36% of 50 is 18.**

A) 596/9 | B) 605/9 |

C) 645/9 | D) 700/9 |

Explanation:

Let Veena's weight = 1 kg

Sana's weight = 2 kg

Sneha's weight = 1.4 kg

Rina's weight = 1.8 kg

Now,according to the given data in the question,

$\frac{1.8x}{100}=1.4$

**x =** $\frac{\mathbf{1}\mathbf{.}\mathbf{4}\mathbf{}\mathbf{\times}\mathbf{}\mathbf{100}}{\mathbf{1}\mathbf{.}\mathbf{8}}\mathbf{}\mathbf{=}\mathbf{}\frac{\mathbf{700}}{\mathbf{9}}\mathbf{}\mathbf{=}\mathbf{}\mathbf{77}\mathbf{}\frac{\mathbf{7}}{\mathbf{9}}$.

A) 14.9% | B) 12.5% |

C) 15.6%% | D) 11.4% |

Explanation:

Let p% of a day is 3 hrs.

We know that a day has 24 hrs.

=> p x 24/100 = 3

=> p = 300/24

=> p = 12.5%

Hence, **3 hrs is 12.5% of a day.**

A) Only C | B) Only A & B |

C) All are required | D) None of the statements is required |

Explanation:

From the given data,

(60 - 45)% = 12.5 + 4

15% = 16.5

=> 100% = ?

100% = 16.5 x 100/15 = 110

Hence, P = 45% of 110 = 45x110/100 = 49.5

Q = 50% of 110 = 55

R = 60% of 110 = 60 x 110/100 = 66

M = 12.5 + 49.5 = 62 or 66 - 4 = 62

Hence, no statement is required to answer.

A) increase 12% | B) decrease 12% |

C) increase 16% | D) decrease 16% |

Explanation:

Given the price of a commodity is decreased by p = 20%

And its consumption is increased by q = 10%

Now, required increase or decrease in the expenditure on the commodity can be

p + q + pq/100 = -20 + 10 - 200/100 = -10 - 2 = -12%.

Hence, **decrease in the expenditure = 12%**

A) 21.5% | B) 24.14% |

C) 23.68% | D) 25.47% |

Explanation:

Here 85 of 352 => 85 is what percent in 352

Let p% of 352 is 85

Percentage(%) is generally calculated in the total of 100.

=> p x 352/100 = 85

=> p = 8500/352 = 24.14%

Hence, **85 is 24.14% of 352.**

A) 153145 kgs | B) 147890 kgs |

C) 152400 kgs | D) 149600 kgs |

Explanation:

Let the total quantity of gold be **p kgs.**

According** **to the question,

50% of p + 25% of p + 12.5% of p = 130900

87.5% of p = 130900

p = 130900 x 100/87.5 = 149600 kgs.

Therefore, the initial gold quantity that king has = **p = 149600 kgs.**