2Q. A class of boys stand in a long line one boy is 9th in order from both ends. How many boys are there in the class ?
  (A) 17                     (B) 18                   (C) 20                  (D) 37

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3. Whole number which is not natural number is 04. Natural number whose predecessor does not exist  is 1.6. Smallest whole number is 0.7. successor of biggest 3-digit number is =999+1=1000 8. (a) 1111111
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