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  1. Find the value of m - n, if ( 9n x 32 x (3-n/2)-2 - (27)n ) / ( 33m x 23 ) = 1/27 ?
    1. 1
    2. -2
    3. -1
    4. 2
Correct Option: A

( 9n x 32 x (3-n/2)-2 - (27)n ) / ( 33m x 23 ) = 1/27
⇒ ( 32n x 32 x 3n - 33n) / ( 33m x 23 ) = 1/27
⇒ ( 32n + n x 32 - 33n) / ( 33m x 23 )= 1/27
⇒ ( 33n x 32 - 33n) / ( 33m x 23 ) = 1/27
⇒ 33n( 32 - 1) / ( 33m x 8 ) = 1/27
⇒ 33n( 9 - 1) / (33m x 8 ) = 1/27
⇒ ( 33n x 8 ) / (33m x 8 ) = 1/27
⇒ 33n / 33m = 1/27
⇒ 33n - 3m = 1/33
⇒ 33( n - m ) = 3-3
3(n - m) = -3
or n - m = -1
or m - n = 1



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