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
E. None of these
সঠিক উত্তরঃ
B.
50
Explanation:
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