There are 2 tables and 8 chairs,

(a) The ratio of the number of chairs to the number of tables is : .

(b) There are times as many chairs as tables.

(a) There are 2 tables and 8 chairs, so the ratio is 8:2.

(b) 8 ÷ 2 = 4, so the number of chairs is 4 times the number of tables.