If C can do a piece of work in 24 days and D can do it in 16 days, how long will it take for them to complete the work together?

A. 9.6 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If the letter 'E' is coded as 5, what will be the code for the word 'FEED'?

A. 6-5-5-4

If '?' represents addition and '?' represents subtraction, what is the result of 5 ? 3 ? 2?

A. 6

In the series 2, 4, 8, 16, what is the next number?

C. 32

If 'APPLE' is coded as '12345', what is the code for 'LEMON' if 'L' is 12, 'E' is 5, 'M' is 13, 'O' is 15, and 'N' is 14?

B. 12131415