 
<translate> Akwai 6 + 4 = 10 waƙoƙi a kan tef. A cikin duka, lokacin shine 10 * 4 = minti 40. Saboda haka amsar karshe ita ce 40. <eng> There are 6 + 4 = 10 songs on the tape. In total, the time is 10 * 4 = 40 minutes. So the final answer is 40. 