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Beyond Horizon Set 4 Paper 1 · Q14

Paper 1Algebra

The number of ways in which three non-negative integers n1n_1, n2n_2, n3n_3 can be chosen such that n1+n2+n3=10n_1+n_2+n_3=10 is

A6666
B5555
C10310^3
D10!3! 2! 1!\frac{10!}{3!\,2!\,1!}
E9!3! 2! 1!\frac{9!}{3!\,2!\,1!}
F10210^2

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