BECE Mathematics 2020 Paper

NOTE:The pie chart is in percentage $(\%)$ and not in degree $(^{\circ})$.Since its in percentage, the sum of all the percentages should add up to 100\% (Thus percentage means out of 100)If its in fraction, the sum of all the fractions must add up to 1To get the degree out of a percentage or fraction, its simply the percentage or fraction $\times 360^{\circ}$Thus to get a value of a percentage or fraction out of a total, its simply the multiplication of the fraction or percentage by the totalThus the degree for the INSURANCE AND TAXES will be the fraction or percentage of the INSURANCE AND TAXES by 360 (sum of all the angles in a pie chart is 360 ) First you have to calculate the \% of the INSURANCE AND TAXESINSURANCE AND TAXES\%+11\%+3\%+5\%+16\%+28\%+22\% = 100\%INSURANCE AND TAXES\% + 85\% = 100\%INSURANCE AND TAXES\% = 100\%-85\%INSURANCE AND TAXES\% = 15\%Applying the rule of calculating for a value of fraction or percentageValue $=$ Fraction or Percentage $x$ the totalThe total angles is $360^{\circ}$The percentage of the INSURANCE AND TAXES\% = 15\%$\Rightarrow$ INSURANCE AND TAXES $^{\circ} = \frac{15}{100} \times 360$NOTE:\% means over $100 \Rightarrow 15 \% = \frac{15}{100}$$\Rightarrow$ INSURANCE AND TAXES $^{\circ} = \frac{15}{100} \times 360^{\circ} = \frac{5400}{100} = 54^{\circ}$