 
<translate> A cikin tafiya guda ɗaya, tafiya zuwa da kuma daga wurin kayan gini, tsuntsu ɗaya ya rufe 2 * 200 = 400 mil. Idan a cikin tafiya guda daya tsuntsu ya rufe mil 400, a cikin tafiye-tafiye 10 na zagaye, ya rufe 400 * 10 = 4000 mil. Tun da akwai tsuntsaye biyu da ke tattara kayan, sun haɗu da 4000 + 4000 = 8000 mil da ke tattara kayan gini a cikin tafiye-tafiye 10 na zagaye. Saboda haka amsar karshe ita ce 8000. <eng> In one round trip, traveling to and from the building materials location, one bird covers 2 * 200 = 400 miles. If in one round trip one bird covers 400 miles, in 10 round trips, it covers 400 * 10 = 4000 miles. Since there were two birds collecting the materials, they covered a combined 4000 + 4000 = 8000 miles collecting the building materials in 10 round trips. So the final answer is 8000. 