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CBSE Class 8 Answered

The sum of two numbers is 1,600 . If 12% of one is equal to 20% of the other, then find the numbers.
Asked by kulsum626 | 22 May, 2019, 02:23: PM
answered-by-expert Expert Answer
 
 
Let the first number = x 
 
then second number = 1600 - x
 
According to the condition in the question, we get
begin mathsize 16px style 12 percent sign space of space straight x space equals space 20 percent sign space of space left parenthesis 1600 space minus space straight x right parenthesis
rightwards double arrow space 12 over 100 straight x space equals space 20 over 100 cross times space space left parenthesis 1600 space minus space straight x right parenthesis
rightwards double arrow space space space 12 straight x space equals space 32000 space minus space 20 straight x
rightwards double arrow space space space space 32 straight x space equals space 32000
rightwards double arrow space space space space space space space straight x space equals space 1000
First space number space equals space straight x space equals space 1000 space and space Second space number space equals space 1600 space minus space straight x space equals space 1600 space minus space 1000 space equals space 600. end style
Answered by Yasmeen Khan | 22 May, 2019, 02:36: PM

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