Answers

2014-08-31T13:11:44+05:30
Let x be the tens digit and y be the units digit.
Actual number
 = 10x + y
Reverse number = 10y + x
x = 2y (
tens digit is twice the units digit)
10x + y + 10y + x = 66
11x + 11y = 66
x + y = 6
2y + y = 6 
3y = 6 
y = 2 
x = 2y
= 4 
The number is 42.
2 3 2
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