Respuesta :
Answer:
300
Step-by-step explanation:
Solve for x.
x+(2/5*x)=420
x=300
The number which becomes 420 after 40% increase. Hence, the original number is 300.
Step-by-step explanation:
Given information:
After increase of 40% the number becomes 420
Let , the original number is [tex]x[/tex]
So, according to the question:
We can write
[tex]x+(0.40\times x)=420\\x+0.40x=420\\1.40x=420\\x=420/1.4\\x=300[/tex]
Hence , the original number is 300.
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