Mathematics for IGCSE & O level - Estimation (Section 1 - No. 37)
Which of the following is the most appropriate way to estimate the height of a lamp post if the height of an adult person is 1.7m?
Estimate the lamp post's height to be slightly taller than an adult person.
Estimate the lamp post's height to be about four times the height of the adult person.
Estimate the lamp post's height using a calculator.
Estimate the lamp post's height to be twice the height of an adult.
Explanation
The example suggests that the lamp post is about four times the height of a person.
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