Question
Two contractors, X and Y, are assigned to finish a
construction project that consists of three phases. Each contractor works at a constant rate for each phase. What is the total number of hours taken by Contractor X to complete all three phases? Statements: 1. The total hours worked by Contractor Y on all three phases is 80% of the total hours worked by Contractor X. Contractor Y worked for 200 hours in the first phase, 300 hours in the second phase, and 250 hours in the third phase. 2. Contractor X spent twice as much time on the first phase as Contractor Y. Contractor X's time spent on the second phase is 150% of the time spent on the first phase.Solution
From Statement 1: Contractor Y’s total time is 200 + 300 + 250 = 750 hours. This is 80% of the time taken by Contractor X, so Contractor X’s total time is 750 / 0.8 = 937.5 hours. this alone is sufficient. From Statement 2: Contractor X’s time in the first phase is twice Contractor Y’s, So without help of statement 1 answer can’t be calculated. Statement 2 alone is not sufficient. Correct Answer: (a) Statement 1 alone is sufficient, but statement 2 alone is not sufficient.
In the question, relationship between some elements is shown in the statements (s). These statements are followed by two conclusions. Read the statemen...
Statements: P ≥ Q > R, S ≤ R, T = W ≥ R
Conclusions:
I. T ≥ S
II. Q < W
In the question, assuming the given statements to be true, find which of the conclusion (s) among given two conclusions is/are definitely true and then...
In which of the following expressions will the expression ‘M ≥ N ' and ‘Q < O’ be definitely true?
Statement:
T > D ≥ C = X < B < O ≤ F
Conclusions:
I).  F > X
II). F < D
...Statements: D = E ≥ M > H = L, H ≤ F < G ≤ J < I
Conclusions:
I. I > L
II. D ≥ F
III. G < EStatement: P < Q; R ≥ S; R ≥ O; S > Q ≥ T
Conclusion:
I. Q > O
II. O > T
Statements:Â Â Â Â Â Â Q % G & Z % G; G # C & E; E @ P # D
Conclusions :Â Â Â Â Â I. C @ PÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â II. Q % PÂ Â Â Â Â ...
In the question, relationship between some elements is shown in the statements (s). These statements are followed by two conclusions. Read the statemen...
What should come in the place of question mark, in the given expressions to make ‘T > Y’ always true?
R > T = U ≥ V ? W ≥ X =Y