8. The digit at tent place of a two digit suraber
is tive times
the digit
digit at unit's place. If the digan
reversed the number becomes 18 less than the
rginal number. What i the orginal number?
Answers
Answered by
1
Answer:
we can't unse that question....
Answered by
9
Answer:
Original Number = 42
Step-by-step explanation:
Let the unit digit be x
Then ten digit will be 2x
So original no. will be.......
10(2X) + x = 20x+ x = 21x
According to questions if digit reverse then...
10x +2x = 12x
Again according to question,
21x - 12x = 18
9x = 18
x = 18/9
x = 2
so, from here we got unit digit = 2
replacing in 10(2x)+x we got
10(2×2)+2
= 10×4+2
= 42
So, the original number is 42.
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