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Number System A...

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  • Question 1
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    How many prime numbers are of the form 3m + 2, where 1 ≤ m ≤ 20?

  • Question 2
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    If the eight digit number 28357a59 is exactly divisible by 111, then find the least possible value of a.

  • Question 3
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    How many different positive integers are there in between 105 and 106, the sum of whose digits is equal to 2?

  • Question 4
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    The greatest number, which leaves remainders 3 and 5 on dividing 523 and 429 respectively, is_____

  • Question 5
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    Find the sum of 3.333333........ + 5.55555555...........

  • Question 6
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    How many factors of 26 × 3× 53 are perfect squares?

  • Question 7
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    If * 35624 is divisible by 11, then the value of * is ____

  • Question 8
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    The product of three consecutive natural numbers will be divisible by ___

  • Question 9
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    The sum of digits of a two digit number is 7 and their product is 12, what will be the difference of two digits?

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