Answer:
200%
Explanation:
Because I answered the question correctly.
( 80/100) × A = ( 40/100 ) × B
Divide both sides by 40/100
( 80A/100 )÷( 40/100 ) = ( 40B/100 )÷(40/100 )
2A = B
Divide both sides by A
2A ÷ A = B ÷ A
2 = B/A
B/A = 2 × 100
B/A = 200 %
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