# 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

Q181. If the number 517*324 is completely divisible by 3, then the smallest whole number in the place of * will be:

1.  0
2.  1
3.  2
4.  None of these

Solution : 2
Q182. The smallest 3 digit prime number is:

1.  101
2.  103
3.  109
4.  113

Solution : 101

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Q183. Which one of the following numbers is exactly divisible by 11?

1.  235641
2.  245642
3.  315624
4.  415624

Solution : 415624
Q184. (?) - 19657 - 33994 = 9999

1.  63650
2.  53760
3.  59640
4.  61560
5.  None of these

Solution : 63650

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Q185. The sum of first 45 natural numbers is:

1.  1035
2.  1280
3.  2070
4.  2140

Solution : 1035
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