A contractor undertakes to do a piece of work in 60 days with 48 workers. After 30 days, only half the work is done. How many more workers are needed to complete the work in the scheduled time?
Show answer & explanation
Correct answer: C
Explanation
48 × 60 = 48 × 30 + (48 + x) × 30
2880 = 1440 + (48 + x) × 30
1440 = (48 + x) × 30
48 = 48 + x
x = 48 - 48 = 0
Number of additional workers required = 0