Amit and Sujit together can complete an assignment of data entry in 5 days. Sujit's speed is 80% of Amit's speed and the total key depressions in the assignment are 5,76,000. What is Amit's speed in key depressions per hour if they work for 8 hours a day?
Given:
Total work = 5,76,000 key depressions
Time = 5 days
Working hours per day = 8
Sujit’s speed = 80% of Amit’s speed
Let Amit’s speed = x key depressions/hour
Then Sujit’s speed = 0.8x
Formula:
Work = (Total combined speed/hour × hours/day × total days)
Solution:
Total speed = (x + 0.8x) = 1.8x
Work = 1.8x × 8 × 5 = 72x
So,
72x = 576000
x = 576000/72
x = 8000 key depressions/hour
Correct Answer: (c) 8000
English
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