Answer:
Explanation:
Given:
Today:
Number of printers = 6
Work duration = 12 hours
Tomorrow:
Work duration = 8 hours
At the same rate of printing,
If 6 printer were used to print newspapers for 12 hours.
Only 1 printer will work for 12 × 6 hours at the same rate
But is the printers were 8, (12 × 6)/8
= 9 printers.
Initial number of printers = 6 printers
Additional printers to be purchased = 9 - 6
= 3 printers
Answer: 3
Explanation:
Printers are said to be working at a constant rate with 6 printers working for 12 hours. This means in other to achieve a similar output with 1 printer;
12 hours × 6 = 72 hours
Total hours required to complete printing = 72 hours
Assuming adding more printers working at constant rate in other to reduce completion hours to 8
Total completion hours ÷ number of printers = 8 hours
72 ÷ number of printers = 8
Nunber of printers = 9
Therefore, number of printers that must be added = 9 - 6 = 3
