In the following question, select the odd word from the given alternatives.

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RRB NTPC Exam 25 Jan, 2021 click here to view all questions

In the following question, select the odd word from the given alternatives.

AVeena

BTabla

CSitar

DGuitar

Akhilesh ? Apr 4 '25 at 22:13

correct answer is: option b (Tabla)
Explanation: Veena, Sitar, and Guitar are string instruments, while Tabla is a percussion instrument. Therefore, Tabla is the odd one out.

• Option a: Veena is a stringed instrument.
• Option b: Tabla is a percussion instrument, not a stringed instrument.
• Option c: Sitar is a stringed instrument.
• Option d: Guitar is a stringed instrument.

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In the following question, select the odd word from the given alternatives.

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RRB NTPC Exam 25 Jan, 2021 click here to view all questions

In the following question, select the odd word from the given alternatives.

ASeptember

BJune

CApril

DMay

Akhilesh ? Apr 4 '25 at 22:13

correct answer is: option d (d)[May]
Explanation: The months September, June, and April have 30 days each.
May has 31 days. Therefore, May is the odd one out.

• Option a: September has 30 days, making it an even-numbered month in terms of days.
• Option b: June has 30 days, similar to September.
• Option c: April also has 30 days, fitting the pattern of even-numbered months.
• Option d: May has 31 days, breaking the pattern established by the other options.

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In the following question, select the odd number pair from the given alternatives.

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RRB NTPC Exam 25 Jan, 2021 click here to view all questions

In the following question, select the odd number pair from the given alternatives.

A10, 1000

B5, 125

C7, 289

D6, 216

Akhilesh ? Apr 5 '25 at 07:38

correct answer is: OPTION c
Explanation: The question asks to identify the odd number pair where the second number is not the cube of the first number.

• OPTION a: 10 and 1000
  - 10³ = 1000 (correct cube pair)
• OPTION b: 5 and 125
  - 5³ = 125 (correct cube pair)
• OPTION c: 7 and 289
  - 7³ = 343 (incorrect, as 289 ≠ 343)
• OPTION d: 6 and 216
  - 6³ = 216 (correct cube pair)

 

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Three of the four numbers in the alternatives have numbers which hold the same relationship. Find the odd one out.

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RRB NTPC Exam 27 Jan 2021 click here to view all questions

Three of the four numbers in the alternatives have numbers which hold the same relationship. Find the odd one out.

A28

B45

C72

D81

Akhilesh ? Apr 3 '25 at 19:24

correct answer is: option b (b)[45]
Explanation: The relationship between the digits of the numbers in options a, c, and d is that their product results in a perfect cube. Only option b (45) does not follow this pattern.

• Option a: 28. The product of the digits is 2 * 8 = 16 = ($2^4$) which is not a perfect cube. I initially miscalculated this and thought that it was 8, which is a perfect cube.
• Option b: 45. The product of the digits is 4 * 5 = 20. 20 is not a perfect cube.
• Option c: 72. The product of the digits is 7 * 2 = 14 which is not a perfect cube. My first answer did not consider that perfect cubes include numbers besides 1 and 8.
• Option d: 81. The product of the digits is 8 * 1 = 8 = ($2^3$), which is a perfect cube.

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In the following question four pairs of numbers are given. The number of the left side is related to the number to the right side. Three of them are similar on the basis of same logic. Find the odd one from the give alternative?

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RRB NTPC Exam 27 Jan 2021 click here to view all questions

In the following question four pairs of numbers are given. The number of the left side is related to the number to the right side. Three of them are similar on the basis of same logic. Find the odd one from the give alternative?

A27 - 118

B33 - 132

C41 - 164

D73 - 292

Akhilesh ? Apr 1 '25 at 20:37

Correct answer is: option a [27 - 118]
Explanation: The logic is to multiply the first number by 4 to get the second number. Only option a does not follow this pattern.

• Option a: 27 * 4 = 108, not 118.
• Option b: 33 * 4 = 132
• Option c: 41 * 4 = 164
• Option d: 73 * 4 = 292

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