 
 <translate> Her geography textbook has 160 + 70 = 230 pages. The sum of pages of her history and geography textbook is 160 + 230 = 390 pages. Her math textbook has 390 / 2 = 195 pages. Her science textbook has 160 x 2 = 320 pages. In total, there would be 160 + 230 + 195 + 320 = 905 pages. So the final answer is 905. <ibo> Akwụkwọ ọgụgụ ala ya nwere peeji 160 + 70 = 230. Nchịkọta nke peeji nke akwụkwọ akụkọ ihe mere eme na nke ọdịdị ala ya bụ 160 + 230 = 390 peeji. Akwụkwọ mgbakọ na mwepụ ya dị peeji 390 / 2 = 195. Akwụkwọ sayensị ya nwere peeji 160 x 2 = 320. N'ozuzu, ọ ga-abụ peeji 160 + 230 + 195 + 320 = 905. Ya mere azịza ikpeazụ bụ 905. 