 
 <prompt> Nina zai so iya hana ta hanyar safar. Ta yaya zama ta hana ta 400 kilomita a watan baya guda a waje ta gida. Kowace watan ta hana ta zama mafi yawa wannan bai da dubu. Idan ta iya yin hakan, me yasa ta hana ta yanzu a shekara biyu? <response>: Kowane wata wata Nina ta yi ƙarfe mara ɗaya, wanda ya nuna 400 * 2 = 800 kilomita.
Shekara biyu shine 24 na watan, don haka nisa ne 24 * 0.5 = 12 watan.
Don haka a 12 watan Nina ta yi 400 * 12 = 4800 kilomita.
Kuma a sauran 12 watan, ta yi 800 * 12 = 9600 kilomita.
Sannan a shekara biyu, Nina zata iya yi 4800 + 9600 = 14400 kilomita.

Jawabi zai kasance 14400. 