Question

The sum of the digits of 2 number is 2/5 of the difference between the number and the number obtained by place changing theposition of the particular digits, what is exact difference between the particular digits of the number?

Answer 1

Step-by-step explanation:

Given The sum of the digits of 2 number is 2/5 of the difference between the number and the number obtained by place changing the position of the particular digits, what is exact difference between the particular digits of the number?

• Now let the tens digit be a and units digit be b.
• So a + b = 2/5 (difference between the number)
•  So we have 10 a + b and the digits are exchanged
•   So a + b = 2/5 (10 a + b – (10 b + a) (since ba will be 10b + a)
•               = 2/5 (10a + b – 10b – a)
•  So 5(a + b) = 20a + 2b – 20b – 2a
•   So 5a + 5b = 18a – 18b
•    So 5b + 18b = 18a – 5a
•    So 23 b = 13 a
•       Or a/b = 23 / 13
•  It is a non reduce able fraction and so a = 23 and b = 13
•   So a + b = 23 + 13  
•                 = 36

Reference link will be

https://brainly.in/question/14549456

Answer 2

Answer:

A+B=23+13

=36. Hope it helps you