Quantitative Aptitude - Arithmetic Ability Questions

The compound interest on Rs. 1000 at 10% per annum for 3 years in (Rs.) is

What is the simplified value of (sec4 A – tan2 A) – (tan4 A + sec2 A)?

There are 1400 students in a school, 25% of those wear spectacles and 2/7 of those wearing spectacles are boys. How many girls in the school wear spectacles?

If the number x3331 is divisible by 11, what is the face value of x?

Slit 69 into three parts such that they are in A.P. and the product of their smaller parts is 483.

If (secA - tanA)2 = x, then the value of x is

A, B and C can complete a work in 20, 24 and 30 days respectively. All three of them starts together but after 4 days A leaves the job and B left the job 6days before the work was completed. C completed the remaining work alone. In how many days was the total work completed?

Car B is twice as fast as car A. If car A covers 90 km in 2 hours, what is the speed of car B?