In subtraction problem below, some single digits (not necessarily distinct) are replaced by letters. Find the value of 7*A+5*B+6*C*D
A 5 C 5
-1 B 8 7
_______
6 7 4 D

• A= 8,B=7, C=3,D=8
  therefore ans is 235
• 8 years agoHelpfull: Yes(6) No(0)
• A 5 C 5 D=8
  -1 B 8 7 C=3
  ----------- B=7
  6 7 4 D A=8
  
  7*A+5*B+6*C*D=7*8+5*7+6*3*8=56+35+144
  =235
• 8 years agoHelpfull: Yes(5) No(0)
• 1) 5-7 , so we borrow 10 from C
  Therefore, 15-7 = 8 = D and decrease value of C by 1
  2) x - 8 = 4 -> x=12 , ie, we borrow 10 from 5 (5-1)
  Therefore, C-1=2 -> C=3
  3) 4-B=7, so we borrow 10 from A (A-1)
  Therefore, 14-B=7 -> B=7
  4) (A-1) -1 = 6 -> A=8
  
  Therefore, A=8,B=7,C=3,D=8
  
  Therefore, ans is 235
  
  
  
• 8 years agoHelpfull: Yes(2) No(0)
• Simply solving the subtraction we get A=8,B=7,C=3,D=8
  On solving the ans is 235
• 6 years agoHelpfull: Yes(0) No(0)