Q.17 Out of 5 apples , 10 mangoes and 15 oranges , the number of ways distributing 15 fruits each to two persons is (a) 56 (b) 64 (c) 66 (d)72 Q.18 The number of divisors of the form 4n+ 1 , n 0 of the number 1010  1111  1313  is   (a) 750 (b) 840  (c) 924  (d) 1024

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Q 17. https://www.meritnation.com/ask-answer/question/urgentplease-explain-clearly-with-proper-steps-so-that-i/permutations-and-combinations/10197787

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