Answer & Explanation
ANS: 42
EQ 1=> X + X + X = 30 => 3X = 30 => X = 10
EQ 2=> Y + X + Y = 12 => 2Y + X = 12 => 2Y +10 = 12 => 2Y = 2 => Y = 1
EQ 3=> Z + Z + Y = 17 => 2Z + Y = 17 => 2Z + 1 = 17 => 2Z = 16 => Z = 8
EQ 4=> X + 2Y × 2Z => 10 + 2(1) × 2(8) = 42
EQ 1=> X + X + X = 30 => 3X = 30 => X = 10
EQ 2=> Y + X + Y = 12 => 2Y + X = 12 => 2Y +10 = 12 => 2Y = 2 => Y = 1
EQ 3=> Z + Z + Y = 17 => 2Z + Y = 17 => 2Z + 1 = 17 => 2Z = 16 => Z = 8
EQ 4=> X + 2Y × 2Z => 10 + 2(1) × 2(8) = 42
