exam Maths Puzzle Numerical Ability

Solve the following equation:
4ax + by = 11ab
8ax - 5by = ab

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exam Other Question

Pump A can unload a tanker in 15 hours, Pump B can unload the same tanker in 25 hours. Because of an approaching storm, both pumps are used to empty the tanker. If the pumps begin at 2:30 a.m., what time will the job be complete? Two boats leave a ramp traveling in opposite directions. The second boat is 10 miles per hour faster than the first. After 3 hours they sre 150 miles apart. Find the speeds of the boats.