IBPS Government Jobs Exams Numerical Ability Permutation and Combination

In how many different ways can the letters of the word COLLECTION be arranged?
1)453600 2)113400 3)56700 4)5040 5)1260

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IBPS Other Question

A man can row 28 km upstream and 70 km downstream in 12 hours. Also, he can row 4440 km upstream and 56 km downstream in 14 hours. What is the speed of the man in still water?
1)7 kmph 2)8 kmph 3)9 kmph 4)12 kmph 5)14 kmph What should come in place of question mark (?) in the following series?
1717, 1744, 1869, 2212, 2941, ?
1)3726 2)3912 3)4083 4)4272 5)4326