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

C. 32

A and B can complete a work in 20 days. If A works alone for 5 days and then B joins him, how many more days will they take to finish the work?

D. 8 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If the equations 3x + 4y = 12 and 6x + 8y = 24 are solved simultaneously, what can be concluded about their solutions?

C. THEY HAVE INFINITELY MANY SOLUTIONS.
Posted in:  Linear Equations -  Algebra -  Mathematics

What is the antonym of 'light'?

B. HEAVY
Posted in:  Antonyms -  Vocabulary -  English

If A=1, B=2, C=3, and so on, what is the code for the word 'CAT'?

A. 312