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[" 31.Let "a,b" and "c" be in AP.Consider the following "],[" statements."],[[" I."(1)/(ab),(1)/(ca)" and "(1)/(bc)" are in AP."," 200"],[" II."(1)/(sqrt(b)+sqrt(c)),(1)/(sqrt(c)+sqrt(a))" and "(1)/(sqrt(a)+sqrt(b))" are in AP."," 40."],[" Which of the statements given above is/are correct? "],[" (a) Only I "],[" (c) Both I and II "," (d) Neither I nor II Onlv II "]]

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