Answer: A) Repetitious Explanation: Here the given words, sullen and moody are synonyms to each other which means that gloomy, resentful. Similarly, repetitious and monotonous are synonyms to each other which means dull, tedious.   Hence, Sullen : moody :: monotonous : repetitious.

A line is an undefined term because of it :   1. Contains an infinite number of points 2. can be used to create other geometric shapes 3. is a term that does not have a formal definition   In Geometry, unless it's stated, a line will extend in one dimension and goes on forever in both ways.

Answer: A) 1951609 Explanation: 1397 x 1397

Answer: C) Mongolia Explanation: China shares land borders with 14 different countries, the longest being with Mongolia followed by Russia and then India.

Answer: B) Either a or b follows Explanation: Clearly, either the traffic signals should be made to function properly or traffic personnel should be deployed to guide vehicular movement in the right way. So either I or II follows.

Answer: A) 30 days Explanation: Given K=4L  -->K+L = 4L+L = 5L   These 5L people can complete the work in 24 days, which means L alone can do the work in (24 x 5)=120 days.   Hence, K alone can do the work in 120/4= 30 days.

Answer: A) Germany and Austria Explanation:

Answer: A) it contains two different elements joined by chemical bond Explanation: We know that All compounds are molecules, but not all molecules are compounds. Water is a molecule because it is made from atoms that have been chemically combined. It is also a compound because the atoms that make water are not all the same - some are oxygen and some are hydrogen.   Hence, Water is a molecule and a compound.