Verbal - Classification-oddwords -> Odd Numerals Pairs or Groups

DIRECTIONS : In this type of questions, certain pairs/groups of numbers are given out of which all except one are similar in some manner while one is different .
6. Choose the numeral pair or group which is different from others.
  A.  80 - 9
  B.  64 - 8
  C.  36 - 6
  D.  7 - 49
7. Choose the numeral pair or group which is different from others.
  A. 8 - 27
  B. 125 - 216
  C. 343 - 512
  D. 1009 - 1331

8. Choose the numeral pair or group which is different from others.
  A.  3 - 4
  B.  4 - 7
  C.  5 - 12
  D.  20 - 21
9. Choose the numeral pair or group which is different from others.
  A.  2 - 8
  B.  3 - 27
  C.  4 - 32
  D.  5 - 125
10. Choose the numeral pair or group which is different from others.
  A.  10 - 20
  B.  30 - 40
  C.  40 - 50
  D.  50 - 60
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