the sum of the sum of the two number is 4000 if 15% of one is equal to 25% of the Other find the numbers
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x+y=4000
15%x=25%y
15x/100 =25y/100
15x =25y
3x=5y
x=5y/3
x+y=4000
5y/3 +y =4000
5y+3y/3 =4000
8y/3 =4000
8y= 3×4000
y=3×4000/8
y=3×500
y=1500
substitute in x = 5y/3
x=5×1500/3
x= 5×500
x=2500
therefore numbers are x=2500, y=1500
15%x=25%y
15x/100 =25y/100
15x =25y
3x=5y
x=5y/3
x+y=4000
5y/3 +y =4000
5y+3y/3 =4000
8y/3 =4000
8y= 3×4000
y=3×4000/8
y=3×500
y=1500
substitute in x = 5y/3
x=5×1500/3
x= 5×500
x=2500
therefore numbers are x=2500, y=1500
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