: Complementary video lectures can be found on his platform, Yes Officer , or his YouTube channel, The Maths Hero .

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Other specific resources include the ZERO-A Booklet of Arithmetic and specialized Mains DI Revision Sets . Where to Access

Most pirated versions floating around lack the appendix, but the genuine course PDF contains 20 pages of "Model Matrices"—tables that instantly map data to solutions for Mixture & Allegation.

: Permutation & Combination, Probability, and Mensuration.