Study the graph and answer the questions below it.
If all four car manufacturers consistently annually accounted for 23% of annual vehicle production in the UK, how many vehicles in total were produced in the UK in 2006 to the nearest ’000 (thousand)?
Correct answer: A
Explanation Cars produced in 2006 by the four companies is 77,500 Let the total number of cars produced in the whole of UK in 2006 be k 23/100 x k = 77,500 K = 336,956 337,000 = to the nearest thousand
If Ford production decreased by 20% in 2009 how many vehicles would be produced in that year?
Explanation 2008 ford production = 35,000 20% decrease = (1-0.02) x 35,000 = 28,000
What was the percentage decrease in production of vehicles by Nissan from 2004 - 2008?
Correct answer: C
Explanation Vehicles produced in 2008 = 20,000 In 2004 = 30,000 (30,000 -20,000)/30,000 x 100 = 33.3%
Study the chart and answer the questions below it.
In 2009 an additional £100,000 will be spent on exploration. If total annual expenditure increases by 8%, what proportion of overall expenditure will exploration account for?
Correct answer: B
Explanation If total expenditure increased by 8%, the new total expenditure = 1.08 x 4,000,000 = 4,320,000 Percentage spent on exploration in 2008 = 29% Proportion spent on eploration = (0.29 x 4320000) + 100000/4320000 = 0.3131 = 31.31%
What was the percentage decrease in the cost of mining from 2007 to 2008?
Explanation Cost of mining in 2007 = 0.19 x 3,400,000 = 646,000 Cost of mining in 2008 = 0.12 x 4,000,000 = 480,000 % decrease = (646,000 - 480,000)/646,000 = 25.7%
