Question

Find the odd number from the given group of numbers.
1849
,
2601
,
2209
,
2197
,
1521

​

Answer 1

Answer:

1849 because

1+8+4+9=22 (even)

2+6+0+1=9. (odd)

2+2+0+9=13. (odd)

2+1+9+7=19. (odd)

1+5+2+1=9. (odd)

Answer 2

Given :  1849, 2601, 2209, 2197, 1521​

To Find : odd one out

Solution:

1849 =   43²

2601  = 51²

2209  = 47²

2197 =  not a perfect square

1521  =  39²

2197  is odd one out as its not a perfect square

all other numbers are perfect square

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