# 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

Q186. On dividing a number by 5, we get 3 as remainder. What will the remainder when the square of the this number is divided by 5 ?

1.  0
2.  1
3.  2
4.  4

Solution : 4
Q187. How many 3-digit numbers are completely divisible 6 ?

1.  149
2.  150
3.  151
4.  166

Solution : 150
Q188. How many natural numbers are there between 23 and 100 which are exactly divisible by 6 ?

1.  8
2.  11
3.  12
4.  13
5.  None of these

Solution : 13
Q189. **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

Solution : 6

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Q190. A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4-digit number 13b7, which is divisible by 11. Then, (a + b) = ?

1.  10
2.  11
3.  12
4.  15

Solution : 10
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