book Maths Puzzle Numerical Ability

System of Equations with 3 variablies

4x � 5y � 5z = �24
�x � y + 3z = 13
5x + y + 4z = 11

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book Other Question

5-3[4-(5 + 2)] - 9 Triangle ABC has area 240. Points X,Y,Z lie on sides AB,BC, and CA, respectively. Given that segment AX/BX=3, BY/CY=4, CZ/AZ=5, find the area of triangle XYZ.