Question
The average speed of a vehicle for a certain number of
hours is 48 km/hr. If the vehicle travels 120 km in the next hour, the average increases by 2 km/hr. Find the total distance covered before this last hour.Solution
Let the number of hours before the last one be 'P'.
Distance before = 48P
(48P + 120) / (P + 1) = 50
=> 48P + 120 = 50P + 50
=> 2P = 70 => P = 35
Total distance = 48 × 35 = 1680 km
In which of the following expressions will the expression ‘S > R’ and ‘W < T’ be definitely false?
Statement: L ≥ X ≤ Z > Y ≤ A, Y = B ≥ C
Conclusion: I. C >A II. A ≥ C
Statements: X @ Y $ Z & U, Z @ V
Conclusions: I. V # X II. V $ X
...Statements: M % N, N & A, A @ B, B # C
Conclusions: I. C & A II. M # B
...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...
Which of the following symbols should replace the question mark (?) in the given expression in order to make the expressions B ≤ D as well as F > B de...
Statement: J < L; J ≥ H > K; L ≥ F > M
Conclusion:
I. K ≥ L
II. F ≥ J
Statements: L < E; M = O; E >K ≥ M
Conclusions:
I. L < M
II. K = O
In which of the following expressions will the expression ‘M ≥ N ' and ‘Q < O’ be definitely true?
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...
