Meaning of Smug

Arithmetic Mean, Geometric Mean And Harmonic Mean Inequalities|Exercise Questions|OMR

Each item in this section consists of a word in capital letters followed by four words or groups of words. Select the word or groups of word that is most nearly opposite in meaning to the word in capital letters. SMUG

If '+' means '-:','xx' means '+', '-' means 'xx' and '-:' means '-' then which of the following equation is correct ?

If + means ÷, - means xx,xx means + and -: means -, then which of the alternatives is correct ?

If-means -: , + means xx , -: means -, xx means +, then which of the following equations is correct?

If + means - , × means ÷ , ÷ means × and - means + , then 12 − 3 + 15 × 3 ÷ 6 = ?

If - means -:,+ means xx,-: means -,xx means +, then which of the following equations is correct?