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If 14$ 8= 91 and 18 $ 4= 51 then 21 $ 9=...

If 14$ 8= 91 and 18 $ 4= 51 then 21 $ 9= ?

A

160

B

155

C

151

D

168

Text Solution

Verified by Experts

The correct Answer is:
A
`14 $ 8 =91`
`implies(14-1)xx(8-1)=91`
`implies13xx7=91`
`18 $ 4=51`
`implies(18-1)xx(4-1)=51`
`implies17xx3=51`
Therefore,
`21$9`
`implies(21-1)xx(9-1)`
`implies20xx8=160`
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KIRAN PUBLICATION-SYMBOLS & NOTATIONS-TYPE-I (vii)
  1. If 1//4//3=254 and 3//6//8=479, then 5//2//7=?

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  2. If 6^(2)%2^(2)^^3^(2)=41 and 7^(2)%5^(2)^^2^(2)=28, then 5^(2)%3^(2)^^...

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  3. If 14$ 8= 91 and 18 $ 4= 51 then 21 $ 9= ?

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  4. If 15 (196) 29 and 16 (100) 6, then what is the value of ‘A’ in 31 (A)...

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  5. Correct the following equation by interchanging the two signs and two ...

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  6. If 3"@"3**3x=3 and 48"@"4**3=36 then 91"@"13**2=?

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  7. If 19 (36) 13 and 37 (81) 28 then what is the value of 'A' in 43 (A) 3...

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  8. If 4 xx 9 xx 3= 4 and 5 xx 3 xx 1=3, then 9 xx 9 xx 7=?

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  9. If (3)^(2)"@"1**7=98 and (4)^(2)"@"2**16=178, then (5)^(2)"@"3**9=?

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  10. If 6 @ 4 @ 7 = 101 " and " 2 @ 5 @ 11 = 150 , then what is the valu...

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  11. If 27 (15) 33 and 41 (13) 53, then what is the value of 'A' in 26 (A) ...

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  12. If 18xx12=206 and 19xx22=408, then 23xx36=?

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  13. If 11 $ 25 =18 ,12$ 20=16 then what is the value of 4$ 50 =?

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  14. If 35% 31 = 12, 92% 30 = 14 then what is the value of 15% 24 = ?

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  15. If 6#30=5,8#24=3,7#28=4, then what is the value of 8#40=?

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  16. If 3%2 = 50, 2%4 = 60, then what is the value of 5 % 4 = ?

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  17. If 23$35 = 13, 3$5 = 8 then what is the value of 4$13 = ?

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  18. If 19+4# 5=39 and 21 # 5+6=111, then 11+15 # 5=?

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  19. If 14 # 3" @ "4 =46 and 19 # 4" @ "3=79 then 21 # 4" @ "1=?

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  20. If 8 xx 16 xx 9 = 8169 and 9 xx 23 xx 4 = 9234, then 4 xx 10 xx 11 = ?

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