Question
‘A’ alone can do some work in 13 days. ‘B’ and
‘C’ together can do the same work in 18 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 234 units. {LCM (13 and 18)} So, efficiency of ‘A’ = (234/13) = 18 units/day So, efficiency of ‘B’ = (18 x 0.5) = 9 unit/day Efficiency of ‘B’ and ‘C’ together = (234/18) = 13 units/day So, efficiency of ‘C’ = 13 – 9 = 4 units/day So, time taken by ‘C’ to finish the work alone = (234/4) = 58.5 days
Which acid is majorly found in Orange?
Which fuel has the highest calorific value?
Which substance is a colorless to faintyellow oily liquid with characteristics similar to tear gas?
Which material is used as a moderator in a nuclear power plant that slows down the neutrons and makes them fit for causing fission?
What is the primary component in silver-colored paints?
What is the chemical name of bleaching powder?
How many carbon atoms are present in a molecule of glucose?
What is the more common name for solid carbon dioxide?
Which of the following statements about glucose is incorrect?
Which of the following is the richest source of phosphorus?
