the result of a number,when decreased by 20% is 192. find this number
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Answered by
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the answer is 240
let the no. be x
as the no.is decreased by 20%
therefore the equation will be
x - 20%of x= 192
let the no. be x
as the no.is decreased by 20%
therefore the equation will be
x - 20%of x= 192
Answered by
0
Let the original number be a.Then,it is decreased by 20%.That is,a-(a×20%).The result is 192.
A.T.Q.
a-(a×20/100)=192
or,a-a/5=192
or,(5a-a)/5=192
or,4a=192×5
or,a=(192×5)/4
or,a=48×5
or,a=240
Hence,the number is 240.
A.T.Q.
a-(a×20/100)=192
or,a-a/5=192
or,(5a-a)/5=192
or,4a=192×5
or,a=(192×5)/4
or,a=48×5
or,a=240
Hence,the number is 240.
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