Answer :

welldone1venkat
12/100 *980-x/100*450=30/100*227
117.6- 4.5 x =68.1
49.5=4.5 x
x = 11
so, x% is equal to 11%
ork
12/100*980 - x percent*450 = 30/100*228
0.12*980 - x/100*450 = 3/10*228
117.6-9x/2 = 68.4
117.6-68.4=9x/2
49.2*2=9x
x=10.93 %

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