exam Maths Puzzle Numerical Ability

Find the number of 15cm square tiles required to cover a rectangular floor 5.4m long and 4.05m wide.

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exam Other Question

Jack has let out 40 meters of kite string when he observes that his kite is directly above Jill. Jack is standing 25 meters away from Jill. Draw a diagram of the above situation. Help !

How do I find the values of each of the following polynomials for the given values of the variable??

2x^2 -5x+1, x=2 and x = -2

Thank you!!