IB Maths AI SL 1.6 Approximation and Error Topic Practice

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Study SL 1.6—Approximation and error conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

Question 1

[Maximum number: 6]

A marathon is a race over a distance of 42.19 km .

Question (a)

(a)

Write down 42.19 km correct to the nearest kilometre.

[ 3 ]

Question (b)

(b)

Find the percentage error if 42.19 km is rounded to the nearest kilometre.

Rolando and Davi are training to run a marathon. They both start their training in the same week.
Rolando runs 6 km in the first week, 8 km in the second week and 10 km in the third week. In each subsequent week he runs 2 km further than the previous week.

[ 3 ]
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