2 years ago in Time and Work

# If 10 persons can do a job in 20 days, then 20 person with twice the efficiency can do the same job in:

[A] 5 days
[B] 40 days
[C] 10 days
[D] 20 days

## Overall Stats

Attempted 2
Correct 0
Incorrect 2
Viewed 0

Debasmita Resma - 2 years ago

Debasmita Resma is saying 10 days is correct answer

Debasmita Resma - 2 years ago

Debasmita Resma is saying 10 days is correct answer

## Related Questions

### A and B working together completed a job in 5 days. If A works twice as efficiently as he actually did and B works 1/3 of actual efficiency, the work would have completed in 3 days. Find the for A to complete the job alone.

• [A] 6(1/2)
• [B] 6(1/4)
• [C] 6(3/4)
• [D] 12(1/2)
• [E] None of these

• [A] 75
• [B] 225
• [C] 150
• [D] 100
• [E] 175

### Worker W produces n units in 5 hours. Workers V and W, workers independently but at the same time, produce n units in 2 hours. How long would it take V alone to produce n units?

• [A] 1 hr 26 min
• [B] 1 hr 53 min
• [C] 2 hr 30 m
• [D] 3 hr 30 min
• [E] 3 hr 20 min

### A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

• [A] 23 days
• [B] 37 days
• [C] 37 1/2 days
• [D] 40 days

### Two forest officials in their respective division were involved in the harvesting of tendu leave. One division had an average output of 21 tons from a hectares and other division, which had 12 hectares of land less, dedicated to tendu leaves, got 25 tons of tendu from a hectare. As a result, the second division harvested 300 tons of tendu leaves more than the first. How many tons of tendu leaves did the first division harvest.

• [A] 3150
• [B] 3450
• [C] 3500
• [D] 3600
• [E] None of these