que.1 ) If 6 men or 8 women can do a work in 21 days, in what time will 9 men and 2 women can do same work .
a) 10
b) 12
c) 14
d) none of these
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The pressure flow hypothesis, also known as the mass flow hypothesis, is the best-supported theory to explain the movement of sap through the phloem. ... This creates turgor pressure, also known as hydrostatic pressure, in the phloem. Movement of phloem sap occurs by bulk flow (mass flow) from sugar sources to sugar sinks
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