Answered

there are 4 numbers A, B, C, and D. the sum of the numbers A, B, and C is 47, the sum of B, C and D is 53, the sum of C, D and A is 55 and the sum of D, A and B is 49. finf the 4 numbers?

Sagot :

If A+B+C= 47 and A=15 then B&C=32.

If B+C+D= 53 and B&C=32 then D=21

If C+D+A= 55 and D&A=36 then C=19

If D+A+B= 49 and D&A=36 then B=13

Therefore, the four unknown numbers are:
A=15
B=13
C=19
D=21