please answer for my question
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Go through it thoroughly and ask if you have any doubts regarding this.
Hope this helps.
Hope this helps.
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smurf1:
in substitution method
r u thr
Yes. Let me calculate. Have you posted this question in the app? If not then please do, so I can post the solution in image.
yes i already posted
but please fast
Im on mobile so it might take time to type because your question already has 2 answers so i cant post my answer there
no that answers are wrong
explain that question
I spent an hour on this and tried every interpretation that i could make of the question. The answer always comes in fraction.
no 50 and 22
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Heya friend ,
Here is your answer !!
__________
Let the ten's digit be x
Let the unit's digit be y .
So , x + y = 9
So , y = 9 - x .
The actual number is = 10x + y .
Acc. to the question ,
( 10y + x ) - 2 ( 10x + y ) = 18 .
=> 10y + x - 20x - 2y = 18.
=> 8y - 19x = 18 .
=> 8 ( 9 - x ) - 19x = 18 [ Substituting the value of y ] .
=> 72 - 8x - 19x = 18
=> 72 - 18 - 27x = 0
=> 54 = 27x
=> x = 2 .
So , y = 9 - 2
= 7 .
So , the original number is ( 2*10 + 7 ) = 27 . [ Answer ] .
__________
Hope it helps !!
Here is your answer !!
__________
Let the ten's digit be x
Let the unit's digit be y .
So , x + y = 9
So , y = 9 - x .
The actual number is = 10x + y .
Acc. to the question ,
( 10y + x ) - 2 ( 10x + y ) = 18 .
=> 10y + x - 20x - 2y = 18.
=> 8y - 19x = 18 .
=> 8 ( 9 - x ) - 19x = 18 [ Substituting the value of y ] .
=> 72 - 8x - 19x = 18
=> 72 - 18 - 27x = 0
=> 54 = 27x
=> x = 2 .
So , y = 9 - 2
= 7 .
So , the original number is ( 2*10 + 7 ) = 27 . [ Answer ] .
__________
Hope it helps !!
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