Question
Download Solution PDFIn a company ABC Ltd. a certain number of engineers can develop a design in 40 days. If there were 5 more engineers, it could be finished in 10 days less. How many engineers were there in the beginning ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
A certain number of engineers can develop a design in 40 days.
If there were 5 more engineers, it could be finished in 30 days.
Formula used:
Let the number of engineers be x.
Work = Number of Engineers × Time
Calculation:
Initial Work = x × 40
New Work = (x + 5) × 30
Since the work done is the same, we equate the two expressions:
⇒ x × 40 = (x + 5) × 30
⇒ 40x = 30x + 150
⇒ 10x = 150
⇒ x = 15
∴ The correct answer is option (4).
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