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If '-' stands for '-:','+' stands for 'x...

If '-' stands for `'-:','+'` stands for `'xx','-:'` stands for '-' and `'xx'` stands for '+' find out which one is correct?

A

`49+7-3xx5-:8=20`

B

`49-7+3-:5xx8=24`

C

`49xx7+3-:5-8=16`

D

`49-:7xx3+5-8=26`

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Verified by Experts

The correct Answer is:
B
`49-7+3-:5xx8=24`
Change the sign, as per the question,
`49-:7xx3-5+8=24`
`implies7xx3-5+8=24`
`implies21-5+8=24`
`:.24=24`
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ARIHANT PUBLICATION-MATHEMATICAL OPERATIONS AND SYMBOL NOTATIONS-Let us Practice (A. Base Level Exercise )
  1. If '+' means '-','-' means 'xx','xx' means '-:' and '-:'- means '+', t...

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  2. If '-' stands for '-:','+' stands for 'xx','-:' stands for '-' and 'xx...

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  3. Select the correct combination of mathematical signs to replace * sign...

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  4. If 'xx' stands for '+','lt' for '-','+' for '-:','gt' for 'xx','-' for...

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  5. If '-' stands for '-:','+' stands for '-', '-:' stands for 'xx','xx' s...

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  6. Which of the following sets of operation with the usual notations repl...

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  7. If 'P' means '+', 'Q' means 'xx' , 'R' means '-:' and 'S' means '-' th...

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  8. Which of the following interchange of signs would make the given equat...

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  9. If '+' means '-:','-' means '+', 'xx' means '-' and '-:' means 'xx', t...

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  10. If P denotes ÷, Q denotes xx , R denotes + and S denotes -, then what ...

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  11. If '-' stands for 'addition' '-:' for 'multiplication', 'xx' for 'sub...

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  12. If A for '+', M for 'xx', D for '-:', G for 'gt', L for 'lt', then whi...

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  13. If the mathematical signs interchange from - to +,+ to -:,xx to - and ...

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  14. If +, -, xx, -:, =, gt and lt are represented as delta**,gamma,eta,ome...

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  15. Select the correct combination mathematical signs to replace .** signs...

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  16. Find the correct group of signs to solve the equation. 24** 16** 8**3...

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

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

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

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

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