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In a survey people had to choose either A, B, C or D. The percentage of people that chose B, C and D are shown here: B- 25% C- 35% D- 30% You are also told that 150 people chose B. How many chose A? So first...

In German, all nouns are masculine (der), feminine (die), neuter (das) or plural (die). On the whole you need to learn the genders individually, however there some guidelines that can help you.. Nouns that a...

Unlike in the English past tense, the French have two auxiliary 'helping' verbs - avoir and être, these become before the past participle, e.g. descendu. For example, j'ai mangé, and je suis allé. So as you ...

Expand and simplify (5x – 2y)(3x – 4y) In this question, we are asked to 'expand' out the brackets. What this means is we need each term in one set of brackets (5x and -2y) to be multiplied by each term in t...

Coronary heart disease is an incredibly common disease. It involves the coronary arteries: the arteries which provide oxygenated blood to the heart tissue itself to keep it functioning. Remember that most ar...