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If + = xx, - = ÷, xx = +, ÷ = - then whi...

If + = `xx`, - = ÷, `xx` = +, ÷ = - then which is the correct equation out of following?

A

`18 - 6 xx 7 div 2 + 8 = 63`

B

`18 div 6 + 4 - 2 +3 = 22`

C

`18 + 6-4 xx 2 div 3 = 26`

D

`18 xx 6 - 4 div 7 xx 8 = 47`

Text Solution

Verified by Experts

The correct Answer is:
C

`18-6 xx7 div 2+8 =63 `
`implies 3+7-16 ne 63`
Option (2)
` 18 div 6 + 4 - 2 div 3 = 22`
`implies 18 -6 xx 4 div 2-3 =22`
` implies 18 - 6 xx 2 -3 =22`
`implies 18 -12 -3 ne 22`
option (3)
` 18+6 - 4 xx 2 div 3= 26`
`implies 18 xx 6 div 4 +2 -3 =26`
`implies 27 + 2 3 =26`
option (4)
`18 xx 6 + 7 xx 8 = 47`
` implies 18 +6 div 4 xx 7 + 8 = 47`
`implies + (3)/(2) xx 7 + 8 = 47`
`implies 18 + 21/2 + 8 = 47`
` = > ( 36 +21 +16 )/(2) = 47`
` implies 73 ne 47 xx 2`
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