Q:

A) 1 : 2 | B) 2 : 3 |

C) 3 : 4 | D) 4 : 5 |

Answer: B) 2 : 3

Explanation:

Explanation:

Let the ratio be k : 1. Then,

k * 16.4 + 1 * 15.4 = (k + 1) * 15.8

<=> (16.4 - 15.8) k = (15.8 - 15.4) <=> k = 0.4/0.6 = 2/3.

Required ratio = 2/3 : 1 = 2 : 3.

0
15

0
61

Q:

A) 62 kg | B) 61 kg |

C) 60 kg | D) 63 kg |

1
118

Q:

A) 59.2kg | B) 58.6kg |

C) 58.8kg | D) 59kg |

2
138

1
134

1
218

2
285

Q:

A) 33 | B) 34 |

C) 39 | D) 29 |

Answer & Explanation
Answer: A) 33

Explanation:

Explanation:

Let the fifth number be x.

The average of the first four numbers = 3x

Sum of all the first four numbers = 3x = 12x

The average of all the five numbers = 85.8

Sum of all the five numbers = 85.8 5 = 429

Sum of all the first four numbers + 5th number = 429

12x + x = 429

x = 429/13 = 33

The 5th number is 33.

1
230