exam Maths Puzzle Numerical Ability

A new swimming club offers memeberships at $200, providing a minimum of 100 people join.For each member in excess of 100, the fee will be reduced by $1 per person, up to 160 people

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exam Other Question

The square of the sum of two consecutive integers is 529. What are the integers?

x = 1st integer
x + 1 = 2nd integer

(x + (x + 1))2 = 529
2x2 = 528
x2 = 264
x = 16.24....

Answer should be 11 and 12. The perimeter of a rectangular garden is 200 yards. The length is eight yards more than three times the width. Find the lenght of the garden.