exam Maths Puzzle Numerical Ability

Find the sum of x for the following set of numbers

2,3,5,6,8,9,11

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exam Other Question

Kay spends 250 min/wk exercising. Her ratio of time spent on aerobics to time spent on weight training is 3 to 2. How many minutes per week does she spend on aerobics? How many minutes per week does she spend on weight training Please help I can not do this factoring.
Factor

6^2+29s-42