Quantitative Aptitude - Arithmetic Ability Questions

A, B and C can do a job working alone in 12, 16 and 24 days respectively. In how many days they can do the job if they worked together?

Raghu has invested Rs. 1000 and received Rs. 1300 at 6% per annum simple interest after X years. Find thevalue of X.

If 6A = 7B = 5C; find A : B : C

In the given figure, E and F are the centers of two identical circles. What is the ratio of area of triangle AOB to the area of triangle DOC?

Which number is 30% less than 80% of 800?

The average weight of 100 students is 32 kg. The average weight of first 49 students is 30 kg and of last 50 students is 34 kg. What is the weight (in kg) of the 50th student?

Akshar remembers that the match is after 26th April but before 30th April, while Suresh remembers that the match is after 22nd April but before 28th April. On which date of April is the match?

26 is 0.4% of which number?