exam Maths Puzzle Numerical Ability

1/8X + 1/4y=5
1/16x +1/2y=7
Solve system with addition method.

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exam Other Question

5*6x+6*3x=400 A rope was cut into two pieces so that one piece was 18 m longer than the other. That piece was also three times as long as the other. How long was each piece and how long was th