Question 65
The average weight of 20 boxes of oranges is 2 kg, and the average weight of 30 boxes of mangoes is 3 kg. Find the average weight of these boxes of fruits, taken together.
Solution
average weight of these boxes of fruits(oranges and mangoes), taken together = $$\frac{20\times\ 2+30\times\ 3}{20+30}$$
= $$\frac{40+90}{50}$$
= $$\frac{130}{50}$$
= 2.6
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