7. A(working alone) can complete a
task in 'x days. A worked alone
for 6
2 days and was then re-
placed by B and C who (working
together) completed the remaining task in 3 days. Working alone B and C take '0.5x' days to complete the entire task. What is the value of x?
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Step-by-step explanation:
give examples of solid wastes discarded from homes.
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