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Bunuel
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40 (x) = (x+3)(40-t)

(1) His weekly income is currently $600.
40x= 600
x=60/4= 15
40(15)=(15+3)(40-t)
t=20/3
Sufficient

(2) The increase of $3 is a 20 percent increase over his currently hourly wage.
3= 0.20x ; x= 15
40(15)=(15+3)(40-t)
t= 20/3
Sufficient

D
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Let original wage = x and new wage = x+3
Current working hours =40
(1) Weekly income= 600
40x=600
x=15
New hours worked = 600/18
Fewer hours worked = 40-600/18
Sufficient
(2) $3 is a 20% increase
x=3/.20= 15
New hours= 600/(15+3)
Fewer hours worked = 40-600/18
Sufficient

D
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