Do the maths: if there are 365 days a year and each has 24 hours, then that means that there are 8760 running hours each year.
ເຮັດຄະນິດສາດ: ຖ້າມີ 365 ມື້ຕໍ່ປີແລະມີ 24 ຊົ່ວໂມງ, ນັ້ນຫມາຍຄວາມວ່າມີຊົ່ວໂມງແລ່ນ 8760 ຕໍ່ປີ.