Quantitative Aptitude - Arithmetic Ability Questions

X can do a piece of work in 'p' days and Y can do the same work in 'q' days . Then the number of days in which X and Y can together do that work is

Five men or ten women can complete a job in 20 days. In how many days can 3 men and 4 women complete it?

The sum of three numbers is 252. If the first number is thrice the second and third number is two-third of the first, then the second number is

In ΔABC, AD is the median and AD = (1/2)BC. If ∠ACD = 40°, then what is the value (in degrees) of ∠DAB?

The mean of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. Find the mean of marks of the students of three divisions of Class X.

A train travelling at 76 kmph crosses a 450 m long platform in 27 seconds. What is the length of the train?

Which of the following is correct?

Find the odd word/letters/number pair from the given alternatives