Question
‘A’ alone can do some work in 20 days. ‘B’ and
‘C’ together can do the same work in 15 days. If ‘B’ is half as efficient as ‘A’, then find the time taken by ‘C’ to complete the work alone.Solution
Let the total work be 60 units. {LCM (20 and 15)} So, efficiency of ‘A’ = (60/20) = 3 units/day So, efficiency of ‘B’ = (3 x 0.5) = 1.5 unit/day Efficiency of ‘B’ and ‘C’ together = (60/15) = 4 units/day So, efficiency of ‘C’ = 4 – 1.5 = 2.5 units/day So, time taken by ‘C’ to finish the work alone = (60/2.5) = 24 days
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 question, assuming the given statements to be true, find which of the conclusion(s) among given three conclusions is /are definitely true and th...
Statement: R < P, M < R, D `<=` P = T
Conclusion: I. R > D II. D `>=` M
...Statements:
Z > N ≥ B = J ≤ M; Y ≥ U > N ≥ P
Conclusions:
I). P ≤ Z
II). M > Y
...Statements:
I ≤ A ≤ S = X < L; N > W > G ≥ P ≥ S
Conclusions:
I. G ≥ A
II. N > L
Given statement shows the relation between different elements followed by two conclusions.
Statement: C1 < L1 > I2 = E1 ≥ N2 > T1
...
Statements: S * K, T $ K, K @ B
Conclusions:
a) S $ B
b) S @ B
Which of the following expression symbols should replace the question mark(?) in the given expressions to make the expression C ≥ E as well as D > M d...
Statements: L ≥ M > N, P > N, T = O ≥ N
Conclusions:
I. T > P
II. L > N
What will come in place of blank in following below such that both P @ S and V % R are definitely true?
P $ Q @ R _ S $ T © U $ V
i) @ ...
