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Number Systems ( 16 to 20 )

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Number Systems ( 16 to 20 ):


APTITUDE QUESTIONS (NUMBER SYSTEMS):

16. How many natural numbers are there between 22 and 100 which are exactly divisible by 5?

A)    6

B)    12

C)    15

D)    13

E)    None of these

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17. If the number 5 * 2 is divisible by 6, then * = ?

A)    9

B)    8

C)    2

D)    7

E)    None of these

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18. The sum of even numbers between 1 and 31 is:

A)    6

B)    128

C)    240

D)    512

E)    None of these


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19. Which one of the following cannot be the square of a natural number?

A)    32761

B)    81225

C)    32437

D)    20164

E)    None of these

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20. Which natural number is nearest to 6485, which is completely divisible by 55?

A)    6435

B)    6500

C)    6550

D)    6525

E)    None of these

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