Reasoning — Word Formation

The letters available in 'CONCENTRATION' are C(2), O(2), N(3), E(1), T(1), R(1), A(1), I(1). 1. NATION (N, A, T, I, O, N) - All letters are available (N used twice, A once, T once, I once, O once). 2. CENTRE (C, E, N, T, R, E) - This word requires the letter 'E' twice, but 'CONCENTRATION' only has one 'E'. Therefore, CENTRE cannot be formed. 3. ACTION (A, C, T, I, O, N) - All letters are available. 4. RATION (R, A, T, I, O, N) - All letters are available. Thus, the correct option is CENTRE.

The letters available in 'ADMINISTRATION' are A(2), D(1), M(1), I(2), N(2), S(1), T(1), R(1), O(1). 1. TRAIN (T, R, A, I, N) - T(1), R(1), A(1), I(1), N(1). All these letters are available in 'ADMINISTRATION'. So, TRAIN can be formed. 2. MINDSET (M, I, N, D, S, E, T) - The letter 'E' is not present in 'ADMINISTRATION'. So, MINDSET cannot be formed. 3. STATIONARY (S, T, A, T, I, O, N, A, R, Y) - The letter 'Y' is not present in 'ADMINISTRATION'. So, STATIONARY cannot be formed. 4. DONATION (D, O, N, A, T, I, O, N) - The letter 'O' is used twice, but 'ADMINISTRATION' has only one 'O'. So, DONATION cannot be formed. Thus, the correct option is TRAIN.

The letters R, A, T, H, E, R can be rearranged to form the meaningful English word 'RATHER'. 'RATHER' is an adverb, typically used to indicate preference or degree (e.g., 'I would rather go', 'It's rather cold'). Thus, the correct option is Adverb.

The antonym of "possible" is "impossible". The prefix "im-" is used here to denote the opposite meaning.

When "light" is combined with "sun", it forms the meaningful compound word "sunlight".

Adding the suffix "-ment" to "govern" forms the noun "government", which means the act or system of governing.

In "Rebuild" (build again), "Recreate" (create again), and "Rewrite" (write again), "re-" means again. In "Report", "re-" is part of the original Latin root (portare - to carry), and does not mean 'again'.

The pair "book + shelf" forms the meaningful compound word "bookshelf".

The pattern involves changing a verb ending in '-ate' to a noun ending in '-ation'. Following this, "Explore" becomes "Exploration".

The prefix "mis-" typically means 'wrongly' or 'incorrectly'. So, "misunderstand" means to understand wrongly or incorrectly.

The word "unbelievable" is formed from the root word "believe", with the prefix "un-" and the suffix "-able".

"Happiness", "Darkness", and "Kindness" are all formed using the suffix "-ness" to create a noun from an adjective. "Government" is formed using the suffix "-ment" to create a noun from a verb. Thus, "Government" uses a different suffix.

Let's break down each word: A) Unhappy: Prefix 'un-' + root 'happy'. No suffix. B) Beautiful: Root 'beauty' + suffix '-ful'. No prefix. C) Discomfort: Prefix 'dis-' + root 'comfort'. No suffix. D) Unforgettable: Prefix 'un-' + root 'forget' + suffix '-able'. This word has both a prefix and a suffix added to the root word.

A) Blackbird: Adjective (black) + Noun (bird). B) Rainfall: Noun (rain) + Noun (fall). While 'rain' and 'fall' can be verbs, in 'rainfall' they function as nouns. C) Greenhouse: Adjective (green) + Noun (house). D) Stopwatch: Verb (stop) + Noun (watch). This is the correct combination.

A) Competition: Noun form of 'compete'. (Valid) B) Competitive: Adjective form of 'compete'. (Valid) C) Competitor: Noun (person) form of 'compete'. (Valid) D) Competeable: This is not a standard or recognized English word. The correct adjective for being able to compete is 'competent' or 'capable of competing'.

A) Subway: A way below ground (underground railway). B) Submarine: A vessel that travels under the sea. C) Subconscious: The part of the mind not fully aware but influencing actions (under the conscious level). D) Substantial: Means 'of considerable importance, size, or worth'. Here, 'sub-' is part of the Latin root 'substantia' (being, essence), and does not convey the primary meaning of 'below' or 'under' in a spatial sense, but rather 'underlying' or 'having substance'.

A) Brunch: A blend of 'Breakfast' and 'Lunch'. B) Unhappy: Formed by adding a prefix ('un-') to a root word ('happy'). C) Quickly: Formed by adding a suffix ('-ly') to a root word ('quick'). D) Bookstore: A compound word formed by combining two separate words ('book' and 'store'). Therefore, 'Brunch' is the word formed by blending.