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Downstream speed = 9+6 = 15 Upstream speed = 9-6 = 3 Now total time is 28 hours If distance between A and B is d, then distance BC = d/2 Now distance/speed = time, so d/15 + (d/2)/3= 28 Solve, d = 120 km
Which stage involves evaluating the project's practicality, cost, and resources before proceeding further?
Which of the following commands are used to put a restriction on the number of rows returned from a query?
During transaction before commit which of the following statements is done automatically in case of shutdown?
What does the ‘
If every non-key attribute is functionally dependent on the primary key, the relation will be in
Which of the following matches the definition given below: It is an artificial key that aims to uniquely identify each record.
Which of the following operators is used to compare a value to a list of literal values that have been specified?
