Question
A’ and ‘B’ together can complete a work in 25 days
while ‘A’ takes 30 days to complete the same work alone. If ‘C’ is 20% more efficient than ‘B’, then find the time taken by ‘C’ alone to complete the whole work.Solution
Let the total work = 150 units Efficiency of (A + B) = 150/25 = 6 units/day Efficiency of ‘A’ = 150/30 = 5 unit/day Therefore, efficiency of ‘B’ = 6 – 5 = 1 units/day Efficiency of ‘C’ = 1.2 × 1 = 1.20 units/day Required time taken = 150/1.20 = 125 days
If L is mother of M’s father then which of the following is true?
Answer the questions based on the information given below.
B $ C means ‘C’ is the husband of ‘B’
B @ C means ‘C’ is the moth...
In expression ‘S & T $ U # V @ W & Y $ Z’ how is Z related to U?
If ' Y $ I @ W, I # T % S, I % P' , then how is Y related to S?
If A – B means that A is the mother of B, A + B means that A is the father of B, A ÷ B means that A is the sister of B, then which of the following ...
If ‘J % K & L @ H # I % G’ is true, then how is G related to K?
In a certain code language,
R + T means 'R is the sister of T'
R - T means 'R is the father of T'
R * T means 'R is the wife...
In a certain language,
'A # B' means 'A is the mother of B'.
'A @ B' means 'A is the spouse of B'.
'A & B' means 'A is the father-i...
L @ K * J * I @ G @ H % F, How is J related to H?
'A + B' means 'A is the father of B'. 'A - B' means 'A is the son of B'. 'A ÷ B' means 'A is the daughter of B'. 'A X B' means 'A is married to B'. In ...
Relevant for Exams:
