In the simple subtraction problem Below , sum single digits (not necessarily distinct) are replace by letters , find the value of 7*A + 7*B +6*C*D
A 7 C 2
- 4 B 6 8
————–
5 4 3 D
a) 77 b) 95 c) 84 d) 70

• A7C2
  -4B68
  _________
  543D
  So after solving the equation we get A=9,B=2,C=0,D=4(because no are not distinct so it may be repeated).
  so Ans of 7A+7B+6CD=7*7+7*2+6*0*4=77
• 11 years agoHelpfull: Yes(49) No(15)
• ans. should be 77.first substract the no. A 7 C 2
  - 4 B 6 8
  ----------
  5 4 3 4
  so d= 4, c = 0, b = 2, A = 9,
  now put the value in the above eq. 7*9+7*2+6*0*4= 77
  
• 11 years agoHelpfull: Yes(10) No(9)
• its really simple ravi try to imagin
  
  
• 11 years agoHelpfull: Yes(3) No(4)
• can u plzz explain more clearly how u r solving this equation? @asish
• 11 years agoHelpfull: Yes(2) No(3)
• see from unit digit
  15 - 7 = 8 So D = 8
  10 + (C -1) - 8 = 4 So C = 3
  10 + (5-1) - B = 7 So B = 7
  (A-1) - 1 = 6 So A = 8
  7A + 5D + 6CD = 56 + 40 + 144 = 240
  
• 9 years agoHelpfull: Yes(2) No(6)
• A 7 C 2
  - 4 B 6 8
  --------------
  5 4 3 D
  
  By assuming some value & subtracting ,
  
  We get A=9, B=2, C=0 & D=4
  
  By Applying in 7*A + 7*B + 7*C*D = 77
• 5 years agoHelpfull: Yes(2) No(0)
• 15 - 7 = 8 So D = 8
  10 + (C -1) - 8 = 4 So C = 3
  10 + (5-1) - B = 7 So B = 7
  (A-1) - 1 = 6 So A = 8
  7A + 5D + 6CD = 56 + 35 + 144 = 235 ans
• 8 years agoHelpfull: Yes(1) No(1)
• how can we find the values of A,B,C,D?
• 6 years agoHelpfull: Yes(1) No(0)
• Hi ASHISH, can u explain the answer i am not understanding the given answer
• 11 years agoHelpfull: Yes(0) No(3)
• please vexplain me logic
  
• 9 years agoHelpfull: Yes(0) No(2)
• Don't know
• 7 years agoHelpfull: Yes(0) No(0)
• Correct answer is option A
  A 7 C 2
  - 4 B 6 8
  --------------
  5 4 3 D
  ----------------
  By solving we get A=9, B=2, C=0 and D=4
  So, 7*9+7*2+6*0*4=77
• 6 years agoHelpfull: Yes(0) No(1)