Quantitative Aptitude - Arithmetic Ability Questions

The point equidistant from the vertices of a triangle is called its

A, B and C can do a job working alone in 6, 9 and 18 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to complete the remainder of the job?

Two chords AB and CD of a circle with centre O intersect at P. If ∠APC = 40°. Then the value of ∠AOC + ∠BOD is

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 12% per annum is Rs 72. What is the value of given sum (in Rs)?

A bag contains coins of denominations Rs.1, Rs.5 and Rs.10. Assuming there are equal number of Rs.1, Rs.5 and Rs.10, what will be the total number of coins in the bag be if the total money is Rs. 368?

The mean of the data 2, 9, 9, 3, 6, 9, 4 is

A watch is sold at a discount of 62.5%. If the marked price of the watch is Rs 16320, then what is the selling price (in Rs) of the watch?

If a3+1a3 = 2, then the value of a2+1a?