Question
A Two digit number is such that the product of the digit is 18. When 63 subtracted from the number the digit interchange the place.Find the number.
Answers
Steve
ab=18
10b+a = 10a+b-63
9a-9b = 63
a-b = 7
factors of 18 are 9,2 and they are 7 apart, so the number is 92
check:
29 = 92-63
10b+a = 10a+b-63
9a-9b = 63
a-b = 7
factors of 18 are 9,2 and they are 7 apart, so the number is 92
check:
29 = 92-63
riya
do this sum more informative manner and correct sense