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What is the additive identity element in the set of whole numbers? 0 (b) `-1` (c) 1 (d) None of these

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RD SHARMA ENGLISH-RATIONAL NUMBERS-All Questions
  1. Fill in the blanks by the correct symbol out of > ,=,\ or<: (i) (-...

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  2. Fill in the blanks by the correct symbol out of > ,=,\ or<: (i)(-2)...

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  3. Arrange the following rational numbers in ascending order: (i)3/5,(-...

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  4. Arrange the following rational numbers in descending order: (i)7/8,(...

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  5. Which of the following statements are true: (i) The rational number ...

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  6. 44/(−77) in standard form is        (a) 4/(−7)     (b) −4/7 ...

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  7. (−102)/(119) in standard form is     (a)− 6/7    (b) 6/7 (c...

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  8. A rational number equal to (-2)/3 is (a)(-10)/(25) (b) (10)/(-15)...

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  9. If (-3)/7=x/(35), then x= (a)15 (b) 21 (c)-15 (d) -21

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  10. Which of the following is correct? (a) 5/9>(-3)/(-8) (b) 5/9<(-3)/(...

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  11. If the rational numbers (-2)/3\ a n d4/x represent a pair of equival...

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  12. What is the additive identity element in the set of whole numbers? ...

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  13. What is the multiplicative identity element in the set of whole num...

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  14. Which of the following is not zero? (a) 0\ xx\ 0 (b) 0/2 ...

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  15. The whole number nearest to 457 and divisible by 11 is (a) 450   (b...

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  16. If -3/8 a n d (x)/(-24) are equivalent rational numbers, then x= (...

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  17. If (27)/(-45) is expressed as a rational number with denominator 5, ...

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  18. Which of the following pairs of rational numbers are on the opposite...

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  19. The rational number equal to 2/(-3) is (a)(17)/(-18) (b) (-6)/9 ...

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  20. If -3/4=6/x , then x= (a)-8 (b) 4 (c)-4 (d) 8

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