If A can do a piece of work in 15 days and B can do it in 10 days, how long will it take for both A and B to complete the work together?

B. 7.5 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

  - Which of the following shapes has four equal sides?

C. SQUARE

While walking in a park, you notice a child has fallen off a swing and is crying. What should you do first?

B. LOOK AROUND TO SEE IF THE CHILD IS ALONE OR IF AN ADULT IS PRESENT.

In a class of 30 students, A is ranked 10th from the top. What is A's rank from the bottom?

B. 20TH

If in a certain code, the word 'COLD' is coded as 'EQRJ', how is the word 'WARM' coded in the same language?

A. YCTO