C can finish a work in 20 days, while D can finish it in 30 days. If they work together, how long will it take to finish the work?

B. 15 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

A car travels 150 km in 2 hours. What is its speed in km/h?

A. 60 KM/H
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

In a certain code, 'CAT' is coded as '3120'. How is 'DOG' coded if 'D' is 4, 'O' is 15, and 'G' is 7?

A. 4157
Posted in:  Substitution -  Coding - Decoding -  Verbal Reasoning

What is the H.C.F. of the polynomials 2x^2 + 4x and 4x^2 + 8x?

A. 2X
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

Find the number that does not fit with the others.

D. 50
Posted in:  Choose odd Numbers -  Classification -  Verbal Reasoning