N workers can complete a piece of work in 50 days. When
5 more workers joined, then the work got completed in 40 days, then what is the value of N?
A10Correct AnswerIncorrect Answer
B15Correct AnswerIncorrect Answer
C20Correct AnswerIncorrect Answer
D25Correct AnswerIncorrect Answer
E30Correct AnswerIncorrect Answer
Solution
As we know, M1 × D1 = M2 × D2 Where, M = number of Men and D = number of Days ⇒ N × 50 = (N + 5) × 40 ⇒ 5N = 4N + 20 ⇒ N = 20 Hence, the value of N = 20
