Study the given pattern carefully and select the number from the given options that can replace the question mark (?).
[3,6 / 7,2] [2,15 / 25,6] [2,20 / 9,5] [3,12 / ?,4]
A can lay railway tracks between two given stations in 16 days and B can do the same job in 12 days. With the help of C, they did the job in 4 days only. Considering this, C alone can do the job in:
A, B and C are well-known authors in Hindi, English and Punjabi, not necessarily in the same order. Read the given statements and decide which of the conclusions from the given options logically follows from the statements.
Statements:
1. C does not write in English.
2. The book of essays is in Punjabi.
3. The book of poems in English has won an award.
4. A is a novelist.
5. B is not an essayist.
A alone can complete a piece of work in 15 days, while B alone can do it in 30 days, if the both of them work on alternate days, when will the work get completed?
