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If 'R' means '-:', 'Q' means 'xx' ,'P' m...

If 'R' means `'-:'`, 'Q' means `'xx'` ,'P' means '+', then `1 8 R 9 P 2 Q 8 =?`

A

18

B

16

C

28

D

30

Text Solution

Verified by Experts

The correct Answer is:
A
Using the correct symnols, we have `18R9P2Q8`
`=18-:9+2xx8`
`=2+2xx8=2+16=18`
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ARIHANT PUBLICATION-MATHEMATICAL OPERATIONS AND SYMBOL NOTATIONS-Let us Practice (A. Base Level Exercise )
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  2. Find the correct group of signs to solve the equation. 24** 16** 8**3...

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  3. If 'R' means '-:', 'Q' means 'xx' ,'P' means '+', then 1 8 R 9 P 2 Q ...

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  4. If '+' means '-','-' means 'xx','-:' means '+' and 'xx' means '-:', th...

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  5. If Q means '+', J means 'xx', T means '-' and K means '-:', then 30 ...

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  6. If P denotes '-:', Q denotes 'xx', R denotes '+' and S denotes '-', th...

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  7. Select the correct combination of mathematical signs to replace ** sig...

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  8. If the given interchanges are made in signs and numbers. which one of ...

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  9. If the given interchanges are made in signs and numbers. which one of ...

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  10. If the given interchanges are made in signs and numbers. which one of ...

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  11. If the given interchanges are made in signs and numbers. which one of ...

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  12. Select the correct combination of mathematical signs to replace ** sig...

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  13. Correct the following equations by interchanging the two signs. 3-9x...

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  14. Correct the following equations by interchanging the two signs. 4xx2...

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  15. Correct the following equations by interchanging the two signs. 5xx1...

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  16. Correct the following equations by interchanging the two signs. 16-2...

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  17. Correct the following equations by interchanging the two signs. 15-:...

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  18. Correct the following equations by interchanging the two signs. 51-:...

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  19. Correct the following equations by interchanging the two signs. 16+4...

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  20. Correct the following equations by interchanging the two signs. 3^(2...

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