ANSWERS
ENGLISH VOCABULARY
1. d. Hard to pin down
Explanation: "Elusive" means difficult to find, catch, or achieve.
2. a. Peaceful
Explanation: "Turbulent" means characterized by conflict or disorder, so its antonym is "Peaceful".
3. b. Sweet-sounding
Explanation: "Mellifluous" refers to a sound that is pleasingly smooth and musical to hear.
4. b. Silent
Explanation: "Garrulous" means excessively talkative, so its antonym is "Silent".
5. d. Reserved
Explanation: "Reticent" means not revealing one's thoughts easily.
6. b. Energetic
Explanation: "Lethargic" means affected by lethargy; sluggish, so its antonym is "Energetic".
7. b. Insatiable
Explanation: "Voracious" refers to wanting or devouring great quantities of food or, by extension, an insatiable appetite for something.
8. a. Wet
Explanation: "Arid" means having little or no rain; too dry or barren to support vegetation.
9. a. Indescribable
Explanation: "Ineffable" means too great or extreme to be expressed in words.
10. b. Long-lasting
Explanation: "Ephemeral" means lasting for a very short time.
ENGLISH GRAMMAR
11. c. She will have sung.
Explanation: This represents a future perfect tense structure.
12. a. The cake was eaten by him.
Explanation: This is in the passive voice.
13. a. She said that she would come the next day.
Explanation: This is the correct transformation to reported speech for the given sentence.
14. b. in
Explanation: The correct preposition to use with "proficient" in this context is "in".
15. c. Worst
Explanation: The superlative form of "bad" is "worst".
16. b. Yell
Explanation: A whisper is quiet, and a shout is loud, similar to a murmur being quiet and a yell being loud.
17. b. A
Explanation: The correct article to use before "honest" is "an", but since "honest" starts with a vowel sound, the correct choice is "A".
18. c. She is writing a letter.
Explanation: This represents a present continuous tense structure.
19. c. Beautifully
Explanation: "Beautifully" describes how the singing is done, making it an adverb.
20. c. Shall
Explanation: Modal verbs are auxiliary verbs that express necessity or possibility, and "Shall" is one of them.
PRACTICAL APTITUDE
21. a. 50 sq. units
Explanation: Area of a rectangle = Length × Breadth = 10 × 5 = 50 sq. units.
22. b. 27
Explanation: The series progresses by adding consecutive odd numbers: 3 + 3 = 6, 6 + 5 = 11, 11 + 7 = 18. Therefore, 18 + 9 = 27.
23. a. 100
Explanation: Average = Sum of observations/Number of observations. Thus, Sum = Average × Number of observations = 20 × 5 = 100.
24. c. 120 km/h
Explanation: Speed = Distance/Time = 480km/4hrs = 120 km/h.
25. c. 90
Explanation: 15% of a number is 45, so 100% of the number is (45 × 100)/15 = 300. Thus, 30% of 300 is 90.
26. b. 0.3
Explanation: The total probability of any event is 1. So, the probability of it occurring = 1 - probability of it not occurring = 1 - 0.7 = 0.3.
27. b. $100
Explanation: Let the original price be x. After a 20% discount, the price becomes 0.8x. So, 0.8x = $80. Therefore, x = $100.
28. b. 8
Explanation: Solving for \(x\) from the equation \(2x - 5 = 11\), we get \(x = 8\).
29. b. Mode
Explanation: The most frequently occurring number in a data set is called the mode.
30. a. $450
Explanation: A 10% loss on $500 is $50. So, the selling price = $500 - $50 = $