Mathematics, 25.02.2021 01:00 dontcareanyonemo

There are 25 packets of rubbers and 5 boxes of rubbers in a delivery parcel. The mean number of rubbers in all the packets and boxes is 20. The mean number of rubbers in all packet is 18 . Work out the mean number of rubbers in the boxes. ANY " NOT SURE . I DON'T KNOW " OR ANY WASTING TIME ANSWERS WILL BE REPORTED !!!

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There are 25 packets of rubbers and 5 boxes of rubbers in a delivery parcel. The mean number of rubb...