If the sum of two numbers is 55 and the h.C.F. And l.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to: op 1: 55/601 op 2: 601/55 op 3: 11/120 op 4: 120/11
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the first paragraph I understood but the last paragraph I can't understand
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