 
<translate> Ka yi la'akari da wannan tambayar. Mai gyara yana amfani da kashi 30% na ƙusa a cikin kwantena don gyara ɗakin dafa abinci. Ya kuma yi amfani da kashi 70% na sauran kusoshi a cikin akwati don gyara shingen. Idan akwai kusoshi 400 a cikin akwati, guda nawa ne suka rage? Wace hanya ce za mu bi don mu sami amsar: 84? <eng> Consider the question. A fixer uses 30% of the nails in a container to repair the kitchen. He also used 70% of the remaining nails in the container to repair the fence. If there were 400 nails in the container, how many nails are remaining?
 What is the step-by-step reasoning process to arrive at the answer: 84? 