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Question

# In a locality, the first 10 households generate total 8 kg of plastic waste each day. The next 15 households generate 0.8 kg of plastic waste each, and the last 10 households generate total 10 kg of plastic waste each day. A recycling van has 5 bin each can hold a maximum 2 kg of waste. In how many turns can the van collect the plastic waste for recycling each day?

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Solution

## Each day, the first 10 households generate 8 kg of plastic waste. The next 15 households generate 0.8 kg of plastic waste each in each day. ∴ Total waste generated in each day by these households =0.8×15=12 kg The last 10 households generate 10 kg of plastic waste. ∴ Total plastic generated =8+12+10=30 kg Each bin can hold 2 kg of plastic. Total number of bins in the van =5 ∴ In one turn, the van can carry 2 kg×5=10 kg of plastic. To collect total of 30kg plastic, the van needs to return 30 kg10 kg=3 times.

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