Question 1006485
B+P+N+M = 17 .....(1)

B+P+N-M=1 .....(2)

(1) + (2) => 2(B+P+N) = 18 OR, B+P+N = 9 .....(3)

P = 2N, Putting this in eq (3) => B+3N = 9 .....(4)

200B+175P+150N+225M = 3400 ....(4)

Since, B+P+N = 9 ....(3), hence using this in eq (1) => M = 17-9 = 8

Putting M=8 & P=2N in eq(4) => 200B+350N+150N+1800 = 3400 OR, 200B+500N=1600 OR, 2B+5N=16 ...(5)

eq(4)x2 => 2B+6N=18 ....(6)

(6)-(5)=> N=2 => P=4 => B=3