book Maths Puzzle Numerical Ability

The ratio of adult tickets to student tickets for the school play was four to five. If the sum of the adult tickets and one half of the students tickets is 260, how many adult tick

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Martina leaves home at 9am,bicycling at a rate of 24 miles hour, two hour later john leaves,driving at the rate of 48 miles hour. at what time will john catch up with martina? Triangle ABC has vertices A(0,4), B(1,2), and C(4,6). Determine whether triangle ABC is a right triangle. Explain.