alleryWhich number is odd, unlike the other three: 18, 26, 40, 57?
- 18
- 26
- 40
- 57
Show answer and solution
Correct answer: D. 57
57 ends in 7 so it is not divisible by 2, while 18, 26 and 40 are all even.
RRB NTPC Odd One Out — practice questions
Explore 37 free Odd One Out questions in RRB NTPC Reasoning. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 1–30 of 37.
Which number is odd, unlike the other three: 18, 26, 40, 57?Read the answer and worked solution →Three of 31, 47, 63 and 70 are odd. Which one is not?Read the answer and worked solution →Spot the number with different parity: 100, 13, 56, 0.Read the answer and worked solution →Three of these are even integers. Pick the odd one: -4, 0, -7, 82.Read the answer and worked solution →1234, 5678, 9012 and 3457: which is the odd number?Read the answer and worked solution →Find the odd one out by parity: 5, 23, 9, 14.Read the answer and worked solution →Which sum is odd while the other three sums are even?Read the answer and worked solution →Three products are even and one is odd. Find the odd product.Read the answer and worked solution →Which difference is odd: 9 - 3, 11 - 5, 14 - 6 or 15 - 4?Read the answer and worked solution →Which binary numeral stands for an odd number, unlike the rest?Read the answer and worked solution →Three are integers with a parity. Which has none: 6, 17, 1/4, 30?Read the answer and worked solution →0, 3, 5 and 9: which is the odd one out by parity?Read the answer and worked solution →What parity relation do any two consecutive integers have?Read the answer and worked solution →Which combination always gives an odd result?Read the answer and worked solution →Find the number that is not even: 64, 88, 91, 100.Read the answer and worked solution →Which of 17, 29, 33 and 46 differs in parity from the rest?Read the answer and worked solution →Among 12, 30, 66 and 45, which is the odd man out?Read the answer and worked solution →Pick the odd one out: 21, 52, 35, 49.Read the answer and worked solution →8, 16, 31 and 24: which one does not fit the group?Read the answer and worked solution →Which of 400, 101, 203 and 305 does not belong?Read the answer and worked solution →Which binary numeral ends in 0 and so differs from the odd ones?Read the answer and worked solution →Odd one out among Mercury, Venus, Jupiter and Mars.Read the answer and worked solution →Jupiter, Saturn, Uranus and Earth: which is not a giant planet?Read the answer and worked solution →Pluto, Haumea, Makemake and Neptune: which is not a dwarf planet?Read the answer and worked solution →Which one does not belong: Ganymede, Callisto, Neptune, Io?Read the answer and worked solution →Which is not a small Solar System body: asteroids, comets, centaurs, Jupiter?Read the answer and worked solution →Which group of planets has dense, rocky compositions?Read the answer and worked solution →Which trait is not found in mammals?Read the answer and worked solution →Odd one out among mice, rats, bats and beavers by order.Read the answer and worked solution →Which of the following is not classified as an inner terrestrial planet?Read the answer and worked solution →
Worked practice questions
Three of 31, 47, 63 and 70 are odd. Which one is not?
- 70
- 31
- 47
- 63
Show answer and solution
Correct answer: A. 70
70 is divisible by 2 and therefore even, whereas the other three leave a remainder of 1.
Spot the number with different parity: 100, 13, 56, 0.
- 100
- 13
- 56
- 0
Show answer and solution
Correct answer: B. 13
Zero counts as even, so 100, 56 and 0 are even and only 13 is odd.
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