number-system

Number System

Number System Questions: What is Number System in Maths? Divisibility Rules for 7, Divisibility Rules for 11, Binomial Theorem Questions, Factorize Expressions

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Online Aptitude Questions with Answers on Number System

Q136. **The difference between a number and its three-fifth is 50. What is the number?**

  1.  75
  2.  100
  3.  125
  4.  None of these

Solution : 125
Q137. **If one-third of one fourth of a number is 15, then three-tenth of that number is:**

  1.  35
  2.  25
  3.  45
  4.  54

Solution : 54
Q138. **A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number?**

  1.  3.5
  2.  6
  3.  8
  4.  None of these

Solution : 8
Q139. **Find the number which multiplied by 15 is increased by 196.**

  1.  14
  2.  20
  3.  26
  4.  28

Solution : 14

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Q140. **If one-half of a number exceeds one-third of that number by 3(1/3), the number is:**

  1.  15
  2.  18
  3.  20
  4.  30

Solution : 20
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