# 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

Q141. **If the sum of a number and its square is 182, what is the number?**

1.  15
2.  26
3.  28
4.  91
5.  None of these

Solution : None of these
Q142. **Twenty times a positive integer is less than its square by 96. What is the integer?**

1.  20
2.  24
3.  30
4.  Cannot be determined
5.  None of these

Solution : 24

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Q143. **The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root?**

1.  8
2.  27
3.  32
4.  None of these

Solution : 8
Q144. **Two-third of a positive number and 25/216 of its reciprocal are equal. The number is:**

1.  5/12
2.  12/5
3.  25/144
4.  144/25

Solution : 5/12

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Q145. **The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is:**

1.  1/289
2.  289/290
3.  290/289
4.  289

Solution : 290/289
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