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O-LevelMathematicsNumber4024/21 · Oct/Nov 2014 · Q28 Marks

Hendrik travels by plane from London to Bangkok. When it is 0400 local time in London it is 1000 local time in Bangkok.

  1. (a)The flight takes 11 hours and 15 minutes. If he leaves London at 21 50 local time, what is the local time in Bangkok when he arrives?[2]
  2. (b)On his return journey, Hendrik leaves Bangkok at 0745 local time and arrives back in London on the same day at 1340 local time. How long was his return flight?[2]
  3. (c)(i)Use the graph to estimate the cost in British Pounds of an item costing 13000 THB.[1]
  4. (c)(ii)The exchange rate can be written as £1 = k THB. Find k.[1]
  5. (d)The cost of flights from London to Bangkok is shown in the table below. For this cost, passengers are allowed to take luggage up to the weight shown. Passengers taking more than this weight of luggage pay an excess charge at the rate shown. Business Class: Cost of flight £1932, Weight of luggage included 30 kg, Charge per extra 1kg £24 Economy Class: Cost of flight £683, Weight of luggage included 23 kg, Charge per extra 1kg £24 Calculate the total cost of Hendrik flying Economy Class from London to Bangkok with luggage weighing 29 kg.[2]

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Mark scheme

Marking points from the official mark scheme (Oct/Nov 2014). The mark or mark type is shown in brackets.

  1. [2] 15 05 or 3 05 pm
  2. [2] B1 for (0)9 05 or (0)3 50 seen or M1 for 21 50 + 11 15 or 21 50 +6
  3. [2] 11 hours 55 minutes
  4. [2] B1 for (0)1 45 or 5 hours and 55 minutes seen or M1 for 13 40 – (0)7 45 + 6 oe
  5. [1] 290 (280 to 300)
  6. [1] 45 or ft from their (c)(i)
  7. [2] 827
  8. [2] M1 for 683 + k × 24

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About this question

Topic
Number, O-Level Mathematics (syllabus 4024). Structured question, 8 marks.
Source
O-Level Mathematics, Oct/Nov 2014 Paper 2 Variant 1, question 2.

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