Question
Anuj, Bittu, and Chintu can individually complete a
certain task in 84 days, 105 days, and 60 days, respectively. They all begin working together, but Bittu leaves after working for 12 days. Determine the total number of days required to complete the entire task.Solution
ATQ, Let total work = 420 days (LCM of 84, 105 and 60) Amount of work completed by Anuj in one day = 420/84 = 5 units Amount of work completed by Bittu in one day = 420/105 = 4 units Amount of work completed by Chintu in one day = 420/60 = 7 units Amount of work completed by Anuj, Bittu and Chintu together in 12 days = 12 × (5 + 4 + 7) = 192 units Amount of time taken by Anuj and Chintu together to complete the remaining work = (420 – 192)/12 = 19 days Desired time = 12 + 19 = 31 days
Find the missing number.
.Â
...
Select the missing number from the given responses.
Select the related word/letters/number from the given alternatives.
LHX: OEA : : PFT : ?
Find the missing number.
20, 30, 42, 56, 72, ?
Select the option that is related to the third number in the same way as the second number is related to the first number.
15 : 5 :: 26 : (?)
Select the number which can be placed in the column of question mark sign.
Study the given pattern carefully and select the number that can replace the question mark [?] in it.
Find the missing number.
15 Select the number from among the given options that can replace the question mark (?) in the following series.
24, 48, 51, 204, 209, ?
