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

If '-' stands for `'-:','+'` stands for '-', `'-:'` stands for `'xx','xx'` stands for '+' then which one of the following equation is corrent?

A

`70-2+4-:5xx6=44`

B

`70-2+4-:5xx6=21`

C

`70-2+4-:5xx6=341`

D

`70-2+4-:5xx6=96`

Text Solution

Verified by Experts

The correct Answer is:
B
`.-.implies-:`
`.+.implies.-.`
`-:implies.xx.`
`.xx.implies.+." "` (by BODMAS rule)
`:.70-:2-4xx5+6=21`
`implies35-20+6=21`
`implies15+6=21`
`implies21-21`
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ARIHANT PUBLICATION-MATHEMATICAL OPERATIONS AND SYMBOL NOTATIONS-Let us Practice (A. Base Level Exercise )
  1. Select the correct combination of mathematical signs to replace * sign...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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