Question

You have won through to the final round in a quiz show and must guess a hidden word, which is known to be one of

RED ORANGE YELLOW GREEN BLUE INDIGO TURQUOISE and PINK
For clues, you may select three letters of the alphabet and ask whether the hidden word contains those letters. The answer will only tell you which of the selected letters are present in the word, and not their order of appearance in the word nor how many times they occur
Which three letters would you select to be sure of determining the word from the answer? If you have time , show that there is only one set three letters that has this property.

Answer 1

Explanation:

Improve your Speaking and Listening Skills with Learn English via Listening Level 1

There are many listening methods, but for me, I choose the active listening method.

Active listening is a method of learning English because “understanding” and “having” are put first. Listening is practicing speaking in the right voice, and understanding what you hear. Every time you listen to it, you must be sure that the sentence is that meaning, pronounced that way. Therefore, before listening, select the sentences you don’t know and don’t understand and look them up clearly, listen and look at the material to read along and read it fluently and fluently. When you take out the material and can read it according to the rhythm, and the voice on the tape, and understand the top, sentence by sentence, you have completed a lesson.

Learning English Via Listening includes six levels. Each level contains 100 listening lessons with one different topic. The audio lessons in Learn English via Listening are sorted by level from easy to difficult. As your listening level improves, you can choose audio tracks from more difficult levels. The presenter speaks with a North American or British accent.

The content of listening practice material according to 6 levels includes: