Q. If in coded language
7+8=94
5+4=51
4+9=23
8+4=42
Then
6+7=?

• 6+7=63
  
  7+8=94......7*8-7=49 .. reverse the digits to get 94
  5+4=51...5*4-5=15... reverse digits to get 51.
  4+9=23
  8+4=42
  Then
  6+7= 63... 6*7-6=36.. reverse digits to get 63.
• 10 years agoHelpfull: Yes(30) No(0)
• the ans is 63
  step1:multiply the given 2 numbers.
  step2:then subtract the first one from the result.
  step3:revert the result.
• 10 years agoHelpfull: Yes(4) No(0)
• 63...observe that 7*(8-1)=7*7=49...reverse of 49 is 94
  5*(4-1)=5*3=15...reverse of 15 is 51
  4*(9-1)=4*8=32...reverse of 32 is 23
  8*(4-1)=8*3=24...reverse of 24 is 42
  so ......6+7=.....6*(7-1)=6*6=36...reverse of 36 is 63
• 10 years agoHelpfull: Yes(3) No(1)
• do you know its answer???
  
• 10 years agoHelpfull: Yes(2) No(3)
• according to the given information
  the first number is multiplied with the number we get after reducing the second number by one and then reversing the answer we get.
  
  
  7*(8-1)=49
  and 94 is reverse of 49
  
  similarly
  5*(4-1)=15
  and 51 is reverse of 15
  
  similarly 4*8=32
  23 is reverse of 32
  
  8*3=24
  42 is reverse of 24
  
  similarly 6*(7-1)=36
  reverse of 36 is 63
  
  therefore answer is 63
• 9 years agoHelpfull: Yes(2) No(0)
• >>(7*8)-7=49
  now reverse 49 ie 94
  similary
  >>(6*7)-6=36
  now reverse 36 ie
  63
• 10 years agoHelpfull: Yes(1) No(1)
• 7*8 -7=49 reverse 94
  5*4 - 5=15 reverse 51
  4*9 - 4=32 reverse 23
  8*4 -8=24 reverse 42
  6*7 -6=36 reverse 63
  so, 63 is the answer...
• 9 years agoHelpfull: Yes(0) No(1)
• 5+5=10
  10+6=16
  16+7=23
  23+8=31
  31+9=40
• 6 years agoHelpfull: Yes(0) No(0)