the sum of the digit of two digit number is 9 if the digits are reversed the new number decreased by 9,is equal to 4 times the original number. Find the original number.
Plszz do it fast...
I will mark u as a brainlist....
KDRaika123:
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Answers
Answered by
15
is 18 is the answer??!/
Hey !! i have just given the right answer ,not explanation!! Explanation is given by someone else !! u should mark her as a brainlist ,not me !!
Answered by
40
Let the nos be X and y so the no. will be 10 +y
according to ques
X +y=9. x= 9-y -- (1)
10y+x-9= 4 (10x+y)
10y+x-9= 40x+4y
10y- 4y +x-40x=9
6y-39x=9
6y -39 (9-y ) =9
6y -351 +39y= 9
45y = 360
y = 8
x=9-8=1
number = 10x+y
10×1+8=
according to ques
X +y=9. x= 9-y -- (1)
10y+x-9= 4 (10x+y)
10y+x-9= 40x+4y
10y- 4y +x-40x=9
6y-39x=9
6y -39 (9-y ) =9
6y -351 +39y= 9
45y = 360
y = 8
x=9-8=1
number = 10x+y
10×1+8=
plz mark it brainliest kavita
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