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Numbers (GATE) Question and Answers-Page first

Numbers problems


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  • 1. n is a whole number which when divided by 4 gives 3 as remainder. What will be the remainder when 2n is divided by 4?

  • Options
  • A. 3
  • B. 2
  • C. 1
  • D. 0

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  • 2. If x and y are the two digits of the number 653xy such that this number is divisible by 80, then x+y is equal to ?

  • Options
  • A. 5
  • B. 4
  • C. 3
  • D. 2

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  • 3. About 4 out of 5 students are left handed. If there are totally 40 students in an class. How many would be left handed ?

  • Options
  • A. 40
  • B. 45
  • C. 32
  • D. 30

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  • 4. The sum of three consecutive odd numbers is 93. What is the middle number?

  • Options
  • A. 31
  • B. 33
  • C. 29
  • D. 27

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  • 5. If x is a whole number, then x²(x² - 1) is always divisible by ?

  • Options
  • A. 4
  • B. 8
  • C. 12
  • D. None

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  • 6. Find the number of factors of 9321 ?

  • Options
  • A. 4
  • B. 5
  • C. 7
  • D. 8

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  • 7. The product of a number and its multiplicative inverse is

  • Options
  • A. 1
  • B. 0
  • C. -1
  • D. Infinity

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  • 8. What is the smallest number by which 2880 must be divided in order to make it into a perfect square ?

  • Options
  • A. 2
  • B. 3
  • C. 4
  • D. 5

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  • 9. In a triangle ABC, angle 'a' is the smallest one & A+7B = 112. Find the range of value 'c' ?

  • Options
  • A. 138 to 164
  • B. 125 to 147
  • C. 148 to 158
  • D. 152 to 164

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  • 10. Which expression is equivalent to i233 ?

  • Options
  • A. i
  • B. 1
  • C. -i
  • D. -1

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