exam Maths Puzzle Numerical Ability

If there are 900 people in the town, how many people have cats & dogs. This is 22 %. So how do I figure out this solution?

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exam Other Question

If I am given 43 minutes to complete a task at work, and I complete it in 43 minutes I would have performed the task at 100%. Now if I am able to complete the task at 145% how many minutes would it have taken me to complete the assignment?
Add or subtract as indicated. Express your result in simplest form
3/ x^2 + 4x +3 - 1/ x^2 - 9