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In the given questions, two quantities are given, one as Quantity I and another as Quantity II. You have to determine relationship between two quantities and choose the appropriate option.a: If quantity I ? quantity IIb: If quantity I > quantity IIc: If quantity I < quantity IId: If quantity I = quantity II or the relationship cannot be established from the information that is givene: If quantity quantity II

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In the given questions, two quantities are given, one as Quantity I and another as Quantity II. You have to determine relationship between two quantities and choose the appropriate option.

a: If quantity I ? quantity II
b: If quantity I > quantity II
c: If quantity I < quantity II
d: If quantity I = quantity II or the relationship cannot be established from the information that is given
e: If quantity quantity II


Three workers A, B and C complete a given piece of work within different time spans, while working individually. What is the ratio of efficiencies of C and B respectively ?
I. A takes 100% more time than C to complete the given piece of work.
II. B completes the given piece of work within 8 days.
III. B takes 2 days less than A to complete the given piece of work.
1). Question cannot be answered even with the information in all thre statements.
2). All of the three
3). Only II and III
4). II and either only I or only III


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1 vote
Answered by on | Votes 1 |
Solution

Clearly, we require all the statements as only then we can find the relation among A,B and C

From I,II & III : Time taken by B to complete the work = 8 days

=> Time taken by A to complete the work = 8 + 2 = 10 days

Time taken by C = $\frac{100}{200} \times 10 = 5$ days

We know that, $\text{efficiency} \propto \frac{1}{time}$

=> Ratio of efficiencies of C and B respectively = 8 : 5

Thus, all the statements are sufficient.

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