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Which one of the following statements is...

Which one of the following statements is correct ?

A

Sum of two prime numbers is always a prime number

B

1 is the smallest prime number

C

a composite number can be odd

D

there is no even prime number

Text Solution

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The correct Answer is:
C
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ARIHANT PUBLICATION PUNJAB-NUMBER SYSTEM-Chapter Exercise
  1. If a, b and c are different integers such that a lt b lt c lt 0, then ...

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  2. What number should be subtracted from (-5)/7 to get (-2)/3?

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  3. Which one of the following statements is correct ?

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  4. Find all possible values of y for which 4-digit number 51y3 is divisi...

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  5. The product of integers between -7 and -3 is

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  6. The value of 1 + (11)/(10) + (11)/(100) + (111)/(1000) + (111)/(10000)...

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  7. In standard form, 0.00001278 is expressed as k xx 10^(n). The value of...

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  8. The difference between the greatest and smallest fraction amongst (6)/...

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  9. The value of 4 + (44)/(10) + (404)/(100) + (444)/(1000) + (4)/(10000) ...

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  10. The smallest value of y in the number 9y8071, so that it is divisible ...

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  11. (14.96 xx 10^(10)) - (3.84 xx 10^(8)) is expressed in standard form as

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  12. The additive inverse of S, where S = 1 - 2 + 3 - 4 + 5 - 6 + 7 - 8 + …...

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  13. Let x = 597 xx 10^(22) + 73.5 xx 10^(21), when x is expressed in stand...

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  14. The sum of all possible values of a, for which the 4 digit number 547 ...

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  15. Which of the following numbers does not lie between (-5)/(6) and (7)/(...

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  16. Express the number 'Two crore ninety lakh fifty five thousand eight h...

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  17. 20 thousand + 20 hundred + 20 ones is equal to

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  18. Ten thousant + Ten ones + Ten tens equals to

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  19. If three-fourth of a number is 27, its seventh part is approximately ...

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  20. What is the difference between the place value and face value of 7 in ...

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