exam
Maths Puzzle
Numerical Ability
Solve by the addition method.
2x+4y=-2
3x-y=11
Read Solution (Total 0)
exam Other Question
A helicopter used in fighting a forest fire travels at 175 km/h from the fire to a pond and 115 km/h with water from the pond to the fire. If a round-trip takes 30 minutes, how lon
</a>