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Start learning 50% faster. Sign in nowLet the efficiency of ‘A’ alone = y units/day Then, Total work = 21*y = 21y units Let the efficiency of B = z unit / day We have 8*z +7y = 21y z:y = 7:4 So the ratio of efficiency of B:A is 7:4. So the efficiency of B is = 7y/4 = 1.75y units / day Efficiency of C = 0.75y units/day Combined efficiency of B and C = 1.75y +0.75y = 2.5y units/day According to the question, 2.5y*x + 6*y = 21y 2.5x= 15 X=6 Quantity 2: Let the speed of the train A = y m/s Then the length of train ‘A’= 24*y = 24y mt. Relative speed of train A wrt man = (y+0.56) m/s Also length of the train A = (y+5.6)*20 = (20y+112) mt. So, 24y = 20y+112 Y=28 Speed of train A is 28 m/s. Speed of train B = 28-1 = 27m/s. Time taken by Train ‘B’ to cross pole = 24*0.75 = 18 sec So length of train ‘B’ = 18*27 =486mt. New speed of train ‘B’ = 27-7 = 20m/s Required time taken ‘B’ = (486+114)/20 = 30 seconds 5a=30sec a=6
Which of the following symbols should be placed in the blank spaces, respectively ( in the same order from left to right ) in order to complete the give...
Statements: F > V > W ≥ L > G; F ≤ O = M < I
Conclusions: I. M > L II. V < I
Statement: W>Y<X<Z=U>S; W<T ≥V
I. Y<T
II. X > V
Statements: U = V ≤ W > Q ≥ N; B < Q; E = W
Conclusion: I. E > Q II. W > B
Statements: P > Q > R > S > T < U < V < W < X
Conclusion:
I. P > T
II. U < X
...Statements: Z = Y ≥ X > W, Q > O = P ≥ I, W ≥ V ≥ U = Q
Conclusions:
I. Z ≥ Q
II. I ≤ W
III. X > P
Statements: A ≤ B = C ≥ D > E > F; F = G ≥ H = I > J > K = L
Conclusions:
I. B > F
II. H = L
Statements: F > C > K; L < G < D; C ≥ H < D > I
Conclusions:
I. L < C
II. K > I
III. F > H
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...
Statements: S > P = N ≤ L, O = L > U, U ≥ W > V ≥ U = T
Conclusions:
I. N ≤ W
II. L > T
III. S > T