exam Maths Puzzle Numerical Ability

The saddle height on a bicycle should be 109% of the riders inside leg measurement L. Write an equation expressing the fact that the saddle height for Brenda is 36 in.

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exam Other Question

In a certain company, 30 percent of the men and 20 percent of the women attend night school. If 40 percent of all employees are men, what percent of all the employees attend night school? Could you please help me with a question?

Solve the system:
2x + 3y = 12
x + 1.5y = -1