+0  
 
0
60
1
avatar

There is a number, the second digit of which is smaller than its first digit by 4,and if the number was divided by the digit sum the quotient would be 7. Find the number?

 Jun 23, 2020
 #1
avatar
0

a - b = 4

n /(a+b) = 7, solve for n

 

n = 84

 Jun 23, 2020

11 Online Users