Pearson's SEC 9

Elliot scores 65 out of 80 in a Maths test. Write this as a fraction in its simplest form.

The planning rules for a housing development state that 1/3 of the houses should have three bedrooms, 3/8 should have four bedrooms, 1/24 should be executive homes and the rest should have two bedrooms. what fractions of the house that have two bedrooms?

Craig buys a ring for $500. He sells it for $750. Write the selling price as a fraction of the cost price in it's simplest form.

Rendell cycles 42 km at an average speed of 18km/hr. Find the time taken, giving your answer as a fraction of an hour in its simplest form. (in mixed number)