Ratio, proportion and rates of change questions

In a car park there are 24 cars and 15 vans and no other vehicles.

This question is about writing ratios in their simplest form.

A train travels 210 km in 1 hour 45 minutes.

A piece of oak has mass 480 g and density 0.75 g/cm³.

A jacket normally costs £80. In a sale the price is reduced to £68.

In a sale, all normal prices are reduced by 20%. The sale price of a coat is £72.

£4500 is shared between Amy, Ben and Carl in the ratio 2 : 3 : 4.

This question is about converting between units.

£2000 is invested in an account paying 3% per year compound interest.

y is directly proportional to x. When x = 4, y = 20.

Two shops sell the same brand of rice. Shop A sells a 2 kg bag for £3.20. Shop B sells a 5 kg bag for £7.50, marked '20% extra free' (so the bag contains 20% more rice than 5 kg at no extra cost).

£650 is invested in an account paying 4% simple interest per year.

To make a shade of green paint, blue paint and yellow paint are mixed in the ratio 5 : 3. To make some green paint, 40 litres of blue paint is used.

A 750 g box of cereal costs £2.40. A 1.2 kg box of the same cereal costs £3.60.

Here are the ingredients needed to make 8 flapjacks: 200 g oats, 120 g butter, 3 tablespoons of syrup.

A map is drawn to a scale of 1 : 25000.

A shop buys a bicycle for £120 and later sells it for £150.

The numbers of visitors to a museum in six consecutive months were: January 120, February 135, March 150, April 145, May 170, June 185.