Question

A worker can complete the assembly of 15 tape players in 6hours. At this rate, how many can the worker complete in a 40-hour work week?

Answer 1

15 tape players in 6 hrs = 15/6 = 2.5 tape players per hr

for 40 hrs...
2.5 * 40 = 100 <=== the worker can complete 100 tape players in 40 hrs