A, B and C alone can complete a work in 20, 30 and 25 days respectively. All of them started working together but after 4 days from start A left the job and after 5 more days B also left the job. So for how many days did C work?
Let the total work = 300 units (LCM of 20, 30 and 25) Amount of work done by A alone in one day = 300/20 = 15 units Amount of work done by B alone in one day = 300/30 = 10 units Amount of work done by C alone in one day = 300/25 = 12 units Amount of work done by A, B and C together in 4 days = 4 × (15 + 10 + 12) = 148 units Amount of work done by B and C together in 5 days = 5 × (10 + 12) = 110 units Remaining work = 300 – 148 – 110 = 42 units So, the time taken by C alone to complete 42 units work = 42/12 = 3.5 days So, C worked for 3.5 + 4 + 5 = 12.5 days
Who is sitting second to the right of G?
What is the position of Aishwarya with respect to the one who like Green Color?
Seven friends J, K, L, M, P, Q and R are sitting in a row facing east. K is sitting between Q and J. R is to the immediate left of M. Two friends are si...
Which of the following colour does V like?
Who among the following lives on floor numbered 5?
Eight persons are sitting around a square shaped table such that one person is sitting at each side and one person is sitting at each corner of the tab...
Which of the following information are not required to ascertain the position of T?
Who among the following person sits third to the left of the one who likes Yellow Colour?
Who among the following sits opposite to E?
How many persons sit between D and C?