Question
Person A is twice as efficient as Person B. Person B can
complete a certain task in 32 days, while Person C takes 4 days more than Person A to finish the same task. Which of the following could be the number of days they work together such that the task remains incomplete?Solution
According to the question,
Time taken by ‘A’ to complete the work = 32/2 = 16 days
Time taken by ‘C’ to complete the work = 16 + 4 = 20 days
Let the total work = 160 units
Efficiency of ‘A’ = 160/16 = 10 units/day
Efficiency of ‘B’ = 160/32 = 5 units/day
Efficiency of ‘C’ = 160/20 = 8 units/day
When they work together for 7 days, work done = (10 + 5 + 8) × 7 = 161 units
Therefore, maximum number of days they can work together such that the work doesn’t get completed is 6 days.
If ‘January’ is called as ‘March’, ‘March’ is called as ‘May’, and ‘May’ is called as ‘July’, then, which month is the first mon...
In a certain code language, ‘HEXAGONAL’ is coded as ‘27’ and ‘LAMINATION’ is coded as ‘30’. How will ‘COMPREHENSION’ be coded in tha...
In a certain code language, ‘CHAIRS’ is written as 'XIXRSP' and ‘SOUNDS’ is written as 'HPRMEP'. How will ‘DEFINE’ be written in that language?
Which of the following may be the code for ‘The Dreams Believe’?
Which of the following may be the code for ‘learning are everything’?
What is the code for the word “Yourself”?
Which word is coded as 'uv, qt, sp' in the given code language?
What is the code for “faith”?
In a certain code language ‘POTTER’ is written as ‘RSVXGV’. What will be the code for the ‘DANGER’ in the same language?
...If 'MEANT' is coded as '34', 'TAKER' is coded as '49', then what is the code for ‘SWEAR’ in the same code language?
Relevant for Exams:
