A charitable trust gives 45% of its yearly fund to schooling, and 32% of that schooling amount is spent on books. If the yearly fund is ₹25,00,000, how much is spent on books?

Schooling gets 45% of 25,00,000 = ₹11,25,000, and books get 32% of that: $1125000\times 0.32$ = ₹3,60,000 (equivalently $0.45\times 0.32=14.4$% of the fund). ₹11,25,000 is the whole schooling amount. ₹8,00,000 takes 32% of the FUND rather than 32% of the schooling amount - the wrong base. ₹19,25,000 is 77% of the fund, from adding 45 and 32.