A number consist of two digits whose sum is 9 if 27 is subtracted from the number its digit are reversed? find the number
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Answered by
6
Answer:
63
Step-by-step explanation:
Let, x be the unit place
y be the tens place
so, no. becomes= 10y + x
According to question, x+y = 9.....(1)
Also,
10y+x-27=10x+y
10y-y+x-10x=27
9y-9x=27
9(y-x)=27
y-x=3 ....(2)
On adding (1) and (2),
x+y+y-x=9+3
2y=12
y=6
putting this value on eqn (1)
x+6=9
x=3
So, number is 10y +x= 10(6) +3 = 60+3 = 63
I hope it helps u :)
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