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State whether the following statements are True (T) or False (F).a) The number of workers and the time taken to complete a job is a case of direct proportion. +b) Two quantities x and y are said to vary directly with each other if for some rationalnumber k, xy = k.o simple interest earned on a principal amount for a fixed rate of interest is anexample of direct proportion.d) If the cost of 15 kg of copper sulp |
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Answer» a true b false |
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