Q:

A) 10 | B) 15 |

C) 20 | D) 25 |

Answer: A) 10

Explanation:

Explanation:

20 large cakes will require the equivalent of 10 helpers working for one hour. 700 small cakes will require the equivalent of 20 helpers working for one hour. This means if only one hour were available we would need 30 helpers. But since three hours are available we can use 10 helpers.

Q:

A) 133.33 % | B) 141.17 % |

C) 145.54 % | D) 139.29 % |

1
5

Q:

A) 180 | B) 300 |

C) 480 | D) 260 |

Answer & Explanation
Answer: B) 300

Explanation:

Explanation:

Let the number be 'N'

Given N + 30N/100 = 390

=> 130N/100 = 390

=> N = 390 x 10/13

=> N = 300.

1
7

Q:

A) 4:3 | B) 2:3 |

C) 3:2 | D) 5:3 |

Answer & Explanation
Answer: A) 4:3

Explanation:

Explanation:

Let the numbers be p & q

q-p/4 = 4q/6

=> q-4q/6 = p/4

=> 2q/6 = p/4

=> p/q = 4/3

2
33

Q:

A) 175 | B) 140 |

C) 135 | D) 95 |

Answer & Explanation
Answer: B) 140

Explanation:

Explanation:

x - 35 = 80x/100

=> x = 175

=> 4x/5 = 4x175/5 = 140.

3
43

Q:

A) 4400 | B) 3100 |

C) 2800 | D) 5600 |

Answer & Explanation
Answer: A) 4400

Explanation:

Explanation:

Let 'P' be the original population at the beginning

P x (95/100) x (85/100) = 3553

P = 4400.

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120