Question
Working alone, ‘X’ and
‘Y’ can complete a work in 16 days and 10 days, respectively. They started working together but after 4 days, ‘Y’ was replaced by ‘Z’ and the work got finished in the next 4 days. Find the time taken by ‘Z’ alone to finish the whole work.Solution
Let the total work be 80 units (LCM of 16 and 10).
Combined efficiency of X and Y = 5+8=13 units/day. Work done by X and Y together in 4 days = 13×4=52 units. Remaining work = 80−52=28 units. 
Efficiency of Z = 7−5=2 units/day.
Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
P __ I __ __ L...
In each of the following questions, choose that set numbers from the four alternative sets, that is similar to the given set.
Given set: [13...
Which of the following statement is right?
Select the combination of letters that when placed sequentially in the blanks of the given series will complete the series.
G _ I _ K _ H I J _ G...
In the following question, select the related word from the given alternatives.
BURIED : SNGCZX :: LEGAL : ?
After arranging the given words according to dictionary order, which word will come at ‘Fifth’ position?
1. Popular
2. Population
Select the option that is related to the fifth letter-cluster in the same way as the second letter-38. cluster is related to the first letter-cluster an...
Select the option in which the numbers are not related in the same way as are the number of the following set.
(34, 40, 52)
If 12 # 34 = 14 and 67 # 88 = 106, then 45 # 67 = ?
Select the option that is related to third cluster in the same way first cluster is related to second cluster.
TURN : 219 :: MAINS: ?
