The required 4-digit code which when summed gives an output value of -2 is ABEF
Using values of A, B , C , D ,E and F given;
- A = -9.4
- B = 8.3
- C = -7.6
- D = 6.7
- E = -5.8
- F = 4.9
The required 4 - digit code which can be summed to arrive at a value of -2 would be arranged thus :
Inputting the values , we have :
-9.4 + 8.3 + (-5.8) + 4.9 = -2
Hence, the required 4-digit code is ABEF