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

Q151. **If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is:**

  1.  40
  2.  44
  3.  80
  4.  88

Solution : 40
Q152. **The sum of three consecutive numbers is 87. The greatest among these three number is:**

  1.  26
  2.  28
  3.  29
  4.  30

Solution : 30

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Q153. **The sum of three consecutive multiples of 3 is 72. What is the largest number?**

  1.  21
  2.  24
  3.  27
  4.  36

Solution : 27
Q154. **The sum of the digits of a two-digit number is 15 and the difference between the digits is 3. What is the two-digit number?**

  1.  69
  2.  78
  3.  96
  4.  Cannot be determined

Solution : Cannot be determined

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Q155. **In a two-digit number, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is:**

  1.  24
  2.  26
  3.  42
  4.  46

Solution : 24
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