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Maths Puzzle
A two digit number such that the product of the digits is 8. When 18 is added to then,then the digits are reversed. what is the number?
Read Solution (Total 2)
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- let tenth digit=x,unit=y
then no. is =10x+y
given
xy=8
10x+y+18=10y+x
or 9y-9x=18
or y-x=2
or y=x+2
so xy=8
x(x+2)=8
or x=2,y=4
so no. is 24 - 11 years agoHelpfull: Yes(2) No(0)
- The number is 24.
2x4=8
24+18=42 - 11 years agoHelpfull: Yes(0) No(0)
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