Choose the odd word/letters/number/number pair from the given alternatives.
- A2890
- B3375
- C1728
- D1331
Solution & Step-by-step Explanation
Let's analyze the given numbers to check if they are perfect cubes or perfect squares:
3375=15
3
(Perfect Cube)
1728=12
3
(Perfect Cube)
1331=11
3
(Perfect Cube)
2890⟹ Not a perfect cube (Note that 14
3
=2744, 17
2
=289, so 2890=17
2
×10).
Since 2890 is not a perfect cube while all others are, it is the odd one out.
3375=15
3
(Perfect Cube)
1728=12
3
(Perfect Cube)
1331=11
3
(Perfect Cube)
2890⟹ Not a perfect cube (Note that 14
3
=2744, 17
2
=289, so 2890=17
2
×10).
Since 2890 is not a perfect cube while all others are, it is the odd one out.