Classification Questions and Answers

Answer: A

The odd word is Addiction.

Subtraction, division and equation are all terms of arithmetic and mathematics. Addiction stands apart: it is the dependence that tobacco causes, through nicotine, which makes it the word in the group that relates to tobacco.

The word also plays on 'addition', which would have fitted with the other three. Recognising the near-pun is the point of the question.

Answer: A

The odd one out (the paper prints 'Sopt') is Zomato.

Ola, Uber and Meru are all ride-hailing or cab services: Ola and Uber are app-based aggregators that connect passengers with drivers, and Meru is a radio-taxi company that later moved to app booking. Zomato is a restaurant discovery and food delivery platform, so it is the only one not in the transport business.

All four are digital platforms, so the grouping cannot be by technology; it has to be by the service they offer, and on that basis Ola, Uber and Meru belong together while Zomato stands apart.

Answer: D

In CGKO, BFJN and AEIM each letter is 4 places after the one before, so these three follow one rule.

In FDKN the letters do not follow the same step of 4 (F to D goes backwards by 2), so FDKN is the odd one, option D.

The pattern CGKO, BFJN, AEIM keeps the same gaps between letters in each word, while FDKN has gaps of minus 2, plus 7 and plus 3.

Answer: C

The odd one is ORQP.

In each of the other three, a first letter is followed by three consecutive letters in forward order: A, then J K L; I, then B C D; U, then F G H. The first letters are all vowels.

ORQP also starts with a vowel, but its last three letters R, Q, P run backwards. That breaks the forward sequence shared by AJKL, IBCD and UFGH, so it is the odd one out.

Answer: B

The odd pair is 16 : 64.

In three of the pairs the second number is three times the first: \(81 \times 3 = 243\), \(64 \times 3 = 192\) and \(25 \times 3 = 75\). In 16 : 64 the second number is four times the first.

So 16 : 64 breaks the rule shared by the others.

In odd-one-out questions on number pairs, first look for a single operation that turns the first number into the second in most of the pairs; the pair that does not fit that operation is the answer.

Answer: B

The odd one out is the Moon.

Earth, Mars, Jupiter and Saturn are all planets, bodies that orbit the Sun directly. The Moon is a natural satellite, which orbits the Earth.

Mars, Saturn and Jupiter each belong to the group of planets, so none of them is odd. Jupiter and Saturn being gas giants while Earth and Mars are rocky splits the group two and two, so it cannot single out one member, which is why the planet-satellite difference is the intended one.

Answer: D

The odd one out is Political Science.

Zoology, physics and chemistry are natural sciences, which study the physical and living world.

Political science is a social science, the study of government and political behaviour, so it does not belong with the other three.

Answer: D

Correct answer: Mathematics

Algebra, geometry, trigonometry and arithmetic are all branches of mathematics, so mathematics is the class to which the other four belong rather than a member of the same set. Whenever one option is the general heading under which the rest fall, that option is the odd one out.

Answer: D

Correct answer: Quart

Inch, foot, yard and metre are all units of length. A quart is a unit of volume, used for liquids, so it measures a different quantity altogether.

Answer: B

Correct answer: Eagle

Kiwi, emu, penguin and ostrich are all flightless birds. The eagle not only flies but is one of the strongest fliers among birds, so it is the odd one out.