the sum of the digits of a two digit number is 10. if 18 be subtracted from it the digits in the resulting number will be equal the number is
Answers
Answered by
1
Step-by-step explanation:
let the two digits be a and b
a+b=10
i think your question is wrong but iwill do it by assumepotion
a-b=18
2a=28(by adding two equ)
a=14
put the value of a
14-b=18
ok i am worng sry if you free today ckme and fcuk me
Answered by
3
x = 10's digit of a two digit number(Let)
y = units digit(Let)
n=Resulting equal digits(Let)
Condition 1-the sum of a two digit number is 10
x + y = 10
further simplifying
y = (10-x)
Condition 2-if 18 be subtracted from it the digits in the resulting number will be equal
10x + y - 18 = 10n + n
10x + y = 11n+ 18
Substitutituting values found above
10x + (10-x) = 11n + 18
10x - x = 11n + 18 - 10
9x = 11n+ 8
If we solve it we will found the values as - x = 7, y = 3, z = 5 and finally we can say the no. is 73.
Similar questions
Math,
5 months ago
English,
5 months ago
Math,
5 months ago
English,
11 months ago
Political Science,
11 months ago
Biology,
1 year ago
Social Sciences,
1 year ago
Science,
1 year ago