what number when decreased by 40% becomes 480
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Let the no. be x
No.decreased =x-40%=480
=>x-40x/100=480
=>x-2/5x=480
=>5x-2x/5=480
=>3x/5=480/1
=>3x=2400
=>x=800
:. Hence, 800 is the number when decreased by 40% becomes 480.
No.decreased =x-40%=480
=>x-40x/100=480
=>x-2/5x=480
=>5x-2x/5=480
=>3x/5=480/1
=>3x=2400
=>x=800
:. Hence, 800 is the number when decreased by 40% becomes 480.
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