At a particular time of day, a 7-m-high Flagstaff casts shadow which is 8.2m long. What is the height of the building which casts shadow 20.5metres in length at the same time?
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At a particular time of a day, a 7-m-high flagstaff casts a shadow which is 8.2 m long. What is the height of the building which casts a shadow 20.5 metres in length at the same moment? ∴ The height of the required building is 17.5 m.
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