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If 1 + 4 = 9, 2 + 8 = 18, 3 + 6 =15 then...

If `1 + 4 = 9, 2 + 8 = 18, 3 + 6 =15` then 7 + 8 = ?

A

41

B

23

C

30

D

32

Text Solution

Verified by Experts

The correct Answer is:
D
`1+4=9`
`implies1+(4xx2)=9`
`2+8=18`
`implies2+(8xx2)=18`
`3+6=15`
`implies3+(6xx2)=15`
Similarly,
`7+8implies7+(8xx2)`
`implies7+16=23`
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KIRAN PUBLICATION-SYMBOLS & NOTATIONS-TYPE-I (vii)
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  2. Some equations are solved on the basis of a certain system. Find the c...

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  3. If 1 + 4 = 9, 2 + 8 = 18, 3 + 6 =15 then 7 + 8 = ?

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  4. Some equations are solved on the basis of a certain system. Find the c...

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  5. Some equations are solved on the basis of a certain system. Find the c...

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  6. Some equations are solved on the basis of a certain system. Find the c...

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  7. In each of the following questions, some equations are solved on the b...

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  8. In each of the following questions, some equations are solved on the b...

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  9. If 7xx8=49,4xx4=12 and 6xx4=18, what will 9xx6 be?

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  10. Some equations are solved on the basis of a certain system. Find the c...

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  11. Some equations are solved on the basis of a certain system. On the sam...

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  12. If 2xx16=8,8xx8=1,6xx12=2, then 12xx144=?

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  13. Some equations are based on the basis of a certain system. Using the s...

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  14. If 1 candle in box number 1 is placed in box number 2, then box -2 has...

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  15. In the imaginary language, the digits 0,1,2,3,4,5,6,7,8 and 9 are subs...

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  16. Some equations have been solved on the basis of a certain system. Find...

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  17. If 4xx5xx2=524,3xx7xx2=723 and 6xx8xx7=876 then 9xx4xx5=?

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  18. Some equations have been solved on the basis of certain system, Find t...

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  19. In this question, some equations are solved on the basis of a certain ...

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