Question
X takes twice as much time as Y or thrice as much time
as Z to finish a job. Working together, the trio can finish the job in 2 days. Y alone can do the work in __________.Solution
Let Y = y days Then X = 2y days Also, X = 3z ⇒ z = (2/3)y Rates: X = 1/(2y) Y = 1/y Z = 1/z = 1/((2/3)y) = 3/(2y) Together: 1/(2y) + 1/y + 3/(2y) = 1/2 (1 + 2 + 3)/(2y) = 1/2 6/(2y) = 1/2 3/y = 1/2 y = 6
In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is/are definitely true and th...
In which of the following expressions does the expression ‘L > B’ and ‘R < N’ is true?
Statements: V ≥ O ≥ S = A > J, M < Y = P ≤ O > R
Conclusion:
I. O > M
II. A ≥ M
III. V > R
Statements: A > B ≥ C ≤ D; E ≥ F ≥ G = A
Conclusion:
I. E > D
II. D ≥ E
Statements: N < G ≥ F > E ≥ D, D = O ≥ I > P
Conclusions:
I. D < G
II. N > I
III. P < E
- Statements: F > G ≥ H = I < J = K ≤ L ≤ M = N
Conclusions:
I. M > J
II. G ≥ N
III. J = M In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is /are definitely true and t...
In the following question the relationship between different elements is given in the statements followed by three conclusions I, II and III. Read the ...
In which of these expression ‘X ≤ B’ is definitely true?
Statement: I ≤ S, S < X, X = F, F ≤ K
Conclusion: I. K > I II. I < X