GS: Hindi / English · Language questions stay in their original language.
120 questions · 120 marks · 2 hours
Choose one option per question.
Tap an option to check it, or open “See answer”.
Correct answer: (A) Lichen
A xerarch succession begins on bare rock, where lichens settle first. They break the rock down into soil, on which mosses and grasses then grow.
Correct answer: (B) Wetlands
The Ramsar Convention of 1971 concerns the conservation of wetlands. Many Indian sites are on its list, Kawar Lake in Bihar among them.
Correct answer: (C) Cadmium
Itai-itai disease is caused by cadmium pollution, which weakens the bones until they break. Mercury causes Minamata disease.
Correct answer: (A) Botanical Garden
In situ conservation keeps the living thing in its natural habitat—a national park and a wildlife sanctuary are examples. A botanical garden is ex situ conservation.
Correct answer: (E) None of the above
The first digit cannot be zero, so there are 4 choices for it. For the other three places, 4 × 3 × 2 = 24 ways from the digits left. In all 4 × 24 = 96 numbers, which matches none of the options.
Correct answer: (A) 1416310136
Each letter is coded by its place in the alphabet plus one. Check: HEIGHT → 9, 6, 10, 8, 9, 21 = 96108921 and LOOSE → 13, 16, 16, 20, 6 = 131616206. So MOBILE → M(14), O(16), B(3), I(10), L(13), E(6) = 1416310136.
Correct answer: (E) None of the above
In rising order the academic posts are Assistant Professor, Associate Professor, then Professor—that is 3, 1, 2, which is not among the options.
Correct answer: (E) None of the above
Correct answer: (E) None of the above
The area of a square is a² and that of an equilateral triangle (√3/4)s². Setting them equal gives a/s = √(√3/4), that is a ratio of ∜3 : 2—which matches none of the options.
Correct answer: (A) 21
Correct answer: (C) 100
Each row is three times the one before: (2, 4, 1, 5) → (6, 12, 3, 15) → (18, 36, 9, 45). The next row should be (54, 108, 27, 135), but the last number is given as 100—that is the wrong one.
Correct answer: (E) None of the above
For a triangle the sum of any two sides must exceed the third. Here 3 + 6 = 9, which is less than 10, so these cannot be the sides of a triangle at all and all three statements are wrong.
Correct answer: (E) None of the above
Madan's brother's uncle is Madan's uncle too, that is his father's brother. The same man is Karan's father's brother, so Madan's father and Karan's father are brothers—Madan and Karan are cousins, which is not among the options.
Correct answer: (A) J, E
Y (25), T (20), O (15)—five places back each time. Going on: 15 − 5 = 10, that is J, and 10 − 5 = 5, that is E.
Correct answer: (E) None of the above
Correct answer: (B) West
Asha walked 3 km south; turning right she faced west and walked 2 km; turning right again she faced north and walked 3 km. The 3 km north cancelled the 3 km south, and turning left she now faces west.
Correct answer: (C) 872
In this series each term is the sum of the two before it: 28 + 84 = 112, 84 + 112 = 196, 112 + 196 = 308, 196 + 308 = 504. The next should be 308 + 504 = 812, but 872 is given—that is the wrong number.
Correct answer: (C) 8
‘256’ and ‘358’ share the digit 5 and the word ‘good’, so 5 = good. ‘637’ and ‘358’ share the digit 3 and the word ‘bad’, so 3 = bad. In ‘358’ only 8 is then left, and only ‘and’ is left—so 8 stands for ‘and’.
Correct answer: (A) 3
Correct answer: (C) AMJXVS
To make CCIDD out of DELHI the letters have moved back 1, 2, 3, 4 and 5 places. Apply the same rule to BOMBAY, moving back 1 to 6 places: B→A, O→M, M→J, B→X, A→V, Y→S—that is AMJXVS.