Question

Job works 8 hours per day at the rate of K20 per hour. If he worked 9 days, how much was his total earnings this fortnight?

Answer 1

In a day, Job earns 8 hours x K20/hour = K<<8*20=160>>160.
So in 9 days, Job earned K160/day x 9 days = K<<160*9=1440>>1440. Answer: \boxed{1440}.