dimarts, 5 d’octubre del 2010

Two problems

1. The average weight of the 11 players in a football team was 72.5 kg. The average weight of the 5 reserve players was 75.6 kg. What was the average weight of the whole squad? ( Give your answer to 3 s.f.)

2. The mean daily weight of potatoes sold in a greengrocer's from Monday to Friday was 14 kg. The mean daily weight of potatoes sold from Monday to Saturday was 15 kg. How many kg of potatoes were sold on Saturday?

Careful with this, the mean is useful to work out the total weight.

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