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Quantitative Aptitude

NUMBER SERIES MCQs

Number Theory

Total Questions : 166 | Page 13 of 17 pages
Question 121. How many of the following numbers are divisible by 3 but not by 9 ?
2133, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276
  1.    5
  2.    6
  3.    7
  4.    None of these
 Discuss Question
Answer: Option B. -> 6
Answer: (b).6
Question 122. A number when divide by 6 leaves a remainder 3. When the square of the number is divided by 6, the remainder is:
  1.    0
  2.    1
  3.    2
  4.    3
 Discuss Question
Answer: Option D. -> 3
Answer: (d).3
Question 123. (1^2 + 2^2 + 3^2 + ... + 10^2) = ?
  1.    330
  2.    345
  3.    365
  4.    385
 Discuss Question
Answer: Option D. -> 385
Answer: (d).385
Question 124. If 1400 * x = 1050. Then, x = ?
  1.    1/4
  2.    3/5
  3.    2/3
  4.    3/4
 Discuss Question
Answer: Option D. -> 3/4
Answer: (d).3/4
Question 125. The sum of the two numbers is 12 and their product is 35. What is the sum of the reciprocals of these numbers ?
  1.    12/35
  2.    1/35
  3.    35/8
  4.    7/32
 Discuss Question
Answer: Option A. -> 12/35
Answer: (a).12/35
Question 126. What will be remainder when 17^200 is divided by 18 ?
  1.    17
  2.    16
  3.    1
  4.    2
 Discuss Question
Answer: Option C. -> 1
Answer: (c).1
Question 127. The difference between the place value and the face value of 6 in the numeral 856973 is
  1.    973
  2.    6973
  3.    5994
  4.    None of these
 Discuss Question
Answer: Option C. -> 5994
Answer: (c).5994
Question 128. Which one of the following is a prime number ?
  1.    119
  2.    187
  3.    247
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Answer: (d).None of these
Question 129. The difference of the squares of two consecutive even integers is divisible by which of the following integers ?
  1.    3
  2.    4
  3.    6
  4.    7
 Discuss Question
Answer: Option B. -> 4
Answer: (b).4
Question 130. The sum all even natural numbers between 1 and 31 is:
  1.    16
  2.    128
  3.    240
  4.    512
 Discuss Question
Answer: Option C. -> 240
Answer: (c).240

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