Q. 24.0( 115 Votes )

Determine n if<br

Answer :

(i)


Given: =12 : 1










4× (2n—1) = 12×(n-2)


8n – 4 = 12n – 24


12n – 8n = 24 – 4


4n = 20


n = 5


(ii)


Given: =11 : 1










4× (2n—1) = 11×(n-2)


8n – 4 = 11n – 22


11n – 8n = 22 – 4


3n = 18


n = 6


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