Question
Traveling at a speed of 's' km/hr, 'C' requires 22
seconds to complete one lap around the perimeter of a circular track with a radius of 35 meters. Determine the time 'T' takes to cover a distance of 400 km, where the first half is covered at a speed of (s + 4) km/hr, and the remaining half is covered at a speed of (s – 16) km/hr.Solution
ATQ, Distance travelled by 'C' = 2πr = 2 × (22/7) × 35 = 220 metres Speed of 'C' = 220/22 = 10 m/sec = 10 × (18/5) = 36 km/hr Therefore, s = 36 According to the question, Time taken by 'T' to cover 1st 200 km = {200/(36 + 4)} = 5 hours Time taken by 'T' to cover rest 200 km = {200/(36 – 16)} = 10 hours Total time taken = 5 + 10 = 15 hours
In these questions, relationship between different elements is shown in the statements. The statements are followed by conclusions.
Statements:...
Statements: Q $ W, W % E, E @ K
Conclusions: a) Q $ K b) W @ K
Statements: E & F, H # I, G $ F, E % D, G @ H
Conclusions:
I. D $ F
II. F @ I ...
Statements: A > B > C, C < D > E, E = F > G
Conclusion:
I. C = G
II. A > F
Statements:
E ≤ A > J ≥ L; Y > J < D
Conclusions:
I. D > L
II. A > L
In which of the following expressions will the expression ‘ Q > B ’ be definitely true?
Statements: K * D, D $ N, N % M, M © W
Conclusions: I.M % W II.M $ W III.N @ D�...
What should come in the place of question mark (?) in the given expression so that the expression T > Z is definitely true and Y ≥ W is definitely...
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...
Statements:
P > Q ≥ M ≤ N; Y ≥ Z ≥ A = P
Conclusion:
I. Y > N
II. N ≥ Y
