a number has two digits . The unit digit is four times than tens digits . if the difference between the number obtained by reversing the digits and the original number is 54, find the original numberbhgffvb
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a number has two digits . The unit digit is four times than tens digits . if the difference between the number obtained by reversing the digits and the original number is 54, find the original numberbhgffvb
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Answer:
4
Step-by-step explanation:
Let the original number be xy=10x+y
Digit's on 10's place=x
Digit in units place=y
Given that x=4y
reversed number yx=10y+x
yx=xy−27
10y+x=10x+y−27
9x=9y+27
x=y+3
x=4y
4y=y+3
3y=3
y=1
x=4(1)=4
∴ original number=4
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