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If Q is directly proportional to P and Q = 28 when P = 4, (i) express Q in terms of P, (ii) find the value of Q when P = 5, (iii) calculate the value of P when Q = 42. |
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Answer» is directly PROPORTIONAL to P and Q = 28 whenQ is directly proportional to P and Q = 28 whenP = 4TO DETERMINE Express Q in TERMS of PValue of Q when P = 5Value of P when Q = 42EVALUATION Q is directly proportional to PSo Where K is nonzero constant QUESTION : 1By the given condition Q = 28 whenQ = 28 whenP = 4 So From Equation (1)So From Equation (1)Which is the required expression Q in terms of P QUESTION : 2When P = 5 From Equation (2)Which is the required Value of Q when P = 5 QUESTION : 3When Q = 42From Equation (2)Which is the required Value of P when Q = 42 |
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