Others Maths Puzzle

she went away after 10 minutes when you called me . is it correct or wht should it be in correct form ?

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Others Other Question

am takes 9 days and Gopal takes D days to complete a job working alone. Ram and Gopal work on the job on alternate days. If they take exactly the same time irrespective of who starts the job,how many positive integer values are possible for D? In how many ways can the letter of word FACTOR be permutated so that no consonant are together ??