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Chain Rule Practice Test 2 with solutions
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© examsnet.com
Question : 5
Total: 40
If a certain number of persons can do a piece of work in 18 days, then in how many days half the number of person will do twice the same work?
9 days
72 days
4
1
2
days
36 days
54 days
Validate
Solution:
Let persons = P
Work done = W
P + W = 18 days
P
2
+
W
= (18 + 2) days
P
2
+
2
W
= (18 × 2 × 2) days = 72 days
© examsnet.com
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