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Let the total work = 120 units (LCM of 12, 24 and 20) Amount of work done by A alone in one day = 120/12 = 10 units Amount of work done by B alone in one day = 120/24 = 5 units Amount of work done by C alone in one day = 120/20 = 6 units Amount of work done by A, B and C together in 2 days = 2 × (10 + 5 + 6) = 42 units Amount of work done by B and C together in 3 days = 3 × (5 + 6) = 33 units Remaining work = 120 – 42 – 33 = 45 units So, the time taken by C alone to complete 120 units work = 45/6 = 7.5 days So, C worked for 7.5 + 2 + 3 = 12.5 days
What will come in the place of question mark?
2, 5, 11, 23, ?
Select the number that will replace the question mark (?) in the following series.
35, 38, 43, 50, 61, 74, ?
Select the related number from the given alternatives.
29 : 65 : : 43 : ?
Select the missing number from the given alternatives:
Find the missing number by analysing the pattern followed by the numbers in each row.
Find the missing number by analysing the pattern followed by the numbers in each row.
What number should replace the question mark?
Insert the correct missing number from the choices given below:
