Quantitative Aptitude - Arithmetic Ability Questions

The ratio of the amount of work done by (x-1) labours in (x+1) days and that done by (x+1) labours in (x+2) days is 5 : 6. Then the value of x is

2cos[(C+D)/2]sin[(C-D)/2] is equal to

What is the value of 96+21624?

O is the orthocentre of∆ABC, and if ∠BOC = 110° then ∠BAC will be

The difference between the compound interest compounding half yearly for 1 year and the simple interest for 1 year on a certain sum of money lent out at 8% per annum is Rs 64. What is the sum (in Rs)?

30 men can do a piece of work in 16 days working 8 hrs a day. How many men are needed to complete another work, which is twice the first one, in 10 days working 12 hrs a day?

The following are the steps involved in solving the above problem. Arrange them in sequential order.

In a triangle PQR, the side QR is extended to S. ∠QPR = 72° and ∠PRS = 110°, then the value of ∠PQR is

If √(1+tan2A) = x, then the value of x is