Question
Working 2 hours per day, R1 alone can complete a work
in 6 days. Working 5 hours per day, R2 alone can complete the same work in 4 days. Working 3 hours per day, in how many days both R1 and R2 together can complete the same work?Solution
Total hours are taken by R1 = 2 x 6 = 12 hours Total hours taken by R2 = 5 x 4 = 20 hours Let, m = time taken in hours by R1 and R2 ⇒ 1/12 + 1/20 = 1/m 8m = 60 m = 60/8 hours Time taken in days if R1 and R2 works 3 hours a day = 60/(8 x 3) = 60/24 = 2.5 days
Statements: P ≤ Q < R; P ≥ S < T; S > U ≥ V
Conclusions:
I. S ≤ Q
II. T ≥ V
III. S > R
Statements: F ≥ G > H; I < J ≤ H; J > K
Conclusions:
I. F > J
II. K < G
III. H > K
Statements: A > C > W > S ≤ M ≥ N = T
Conclusion:
I. M > C
II. S > A
Statement: M < N; O ≥ P; O ≥ L; P > N ≥ Q
Conclusion:
I. N > L
II. L > Q
In this question, two statements are followed by two conclusions, numbered I and II. Find out which conclusion(s) is/are definitely true, based on the ...
Statements: C = A ≤ H < K ≥ L = Q; S = T ≥ K
Conclusion: I. C < T II. A = S
...Statements: F > V > W ≥ L > G; F ≤ O = M < I
Conclusions: I. M > LÂ Â Â II. V < I
Statement: A≤T<B =C ≤P<D;D>J ≥S
I. C >S
II. J < D
Which of the following set of symbols should be placed in the blanks respectively (from left to right) in the given expression in order to make the expr...
Statement: A < Z > I < B > S = O ≤ N
Conclusions:
I. S= N
II. B > O
