O-LevelMathematicsNumber4024/11 · Oct/Nov 2011 · Q82 Marks
A large tank contained 2.3 × 10⁶ litres of oil. During a 4 week period, 1.2 × 10⁵ litres were used.
- (a)Calculate how many litres of oil remain in the tank after the 4 weeks. Give your answer in standard form.[1]
- (b)Giving your answer in standard form, calculate the average number of litres used each week.[1]
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