Paper 2 · Mensuration
Working 8 hours a day, 45 men could do a job in 12 days. How many men, working at the same rate for 7 1/2 hours a day, should be employed to do the job in 9 days?
Model answer
64
Explanation: (8×12×45)/(7,5×9)=64.
Derived from ZIMSEC Mathematics Paper 2, June 1999, Q10
