Question
The ratio of the speed of 'B' to that of 'C' is 1:2. 'B'
covers 'I' km in 9 hours and 'C' covers (I + 90) km in 6 hours. Find the time taken by 'D', whose speed is 50% of the combined speed of 'B' and 'C' together, to cover (I + 180) km.Solution
ATQ, Let the speed of 'B' and 'C' be f km/h and 2f km/h respectively. So, I = (f) × 9 = 9f -------------- (i) And (I + 90) = (2f) × 6 -------------- (ii) Using value of 'I' from equation (i) in equation (ii), we get 9f + 90 = 12f Or, 3f = 90 Or, 'f' = (90/3) = 30 So, speed of 'B' = 30 km/h Also, speed of 'C' = 2 × 30 = 60 km/h Therefore, speed of 'D' = 0.50 × (30 + 60) = 45 km/h And I = 9 × 30 = 270 km So, required time = {(270 + 180) / 45} = 10 hours
Statements: S < T < U ≤ W; C > U < V < W ≤ X
Conclusion:
I. S < V
II. T < X
Statement: A > B = C < D > E; F ≤ H < I; E > G > I
Conclusions:
I. D > F
II. F < G
III. B < G
Statement: A ≥ B ≥ C = D > E, F > G = H ≤ C
Conclusion: I. C ≥ F II. F > D
...Statement: E < F ≤ G = H, I ≥ G ≤ J ≤ K
Conclusion: I. K > E II. H > K
Statement: A < Z > I < B > S = O ≤ N
Conclusions:
I. S= N
II. B > O
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 given ...
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 the...
Statements:
A < R ≤ Y = F; U > L = T; A < L = P > E
Conclusions:
I). U > E
II). T > Y
...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 the...
Statements: F > V > W ≥ L > G; F ≤ O = M < I
Conclusions: I. M > L II. V < I
