O-LevelMathematicsNumber4024/11 · May/June 2011 · Q143 Marks
By writing each number correct to one significant figure, estimate the value of (7.84 × 326) / 0.18.
- (a)By writing each number correct to one significant figure, estimate the value of (7.84 × 326) / 0.18.[2]
- (b)An athlete ran a race in 9.58 seconds, correct to the nearest hundredth of a second. What is the shortest possible time that the athlete could have run the race?[1]
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