1 Finding Percentages of a Quantity. Press Ctrl-A ©2009 – Not to be sold/Free to use Stage 4 -Year 7

2 6.3 Finding Percentages of Quantities (1/3) Some Percentages YOU must know!!! PercentageFractionDecimal 33 % % % % % % Concentration WebWeb | FlashFlash End of Page

3 6.3 Finding Percentages of Quantities (2/3) 1. Find 66 % of $ x = 2 x 40= $80 2. Find 50% of 140 tonne x = 70 tonne = = End of Page

4 6.3 Finding Percentages of Quantities (3/3) 1. Find 37 % of $ x = 3 ÷ 8 x 240= $90 2. Find 17 % of kg. = x = 17.5 ÷ 100 x = 350 kg Using a Calculator 1212 = End of Show