Daily Practice - Higher

A block has volume 170 cm³ and density 2.5 g/cm³. Work out its mass.A block has volume 170 cm^3 and density 2.5 g/cm^3. Work out its mass.

Two similar shapes have lengths in the ratio 1 : 3. The smaller has an area of 12 cm². Work out the area of the larger.Two similar shapes have lengths in the ratio 1 : 3. The smaller has an area of 12 cm^2. Work out the area of the larger.

20 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.

Four classes in order have frequencies 10, 8, 4, 10. Write down the cumulative frequency at the end of the third class.

Write √32 in the form a √b, where b is as small as possible.Write sqrt(32) in the form a sqrt(b), where b is as small as possible.