Mr. Jamal employed 50 workers to finish a work within 30 days . After 20 days he found out that only 50% work had been completed. How many additional workers did Mr. Jamal need to finish the work in time?
A
100
B
50
C
40
D
35
Correct Answer: 50
Remaining days = 30 - 20 = 10 days Remaining work = 100% - 50% = 50% Now, 50% work can be completed in 20 days by 50 workers So, 50% work can be completed in 10 days by 50 x 20 / 10 = 100 workers Therefore, additional workers needed = 100 - 50 = 50