Quantitative Aptitude - Arithmetic Ability Questions

A man travels 50 km at speed 25 km/h and next 40 km at 20 km/h and there after travel 90km at 15 km/h. His average speed is

Rs. 490 is divided among A, B and C such that A's share is half that of B's and thrice that of C's. What is C's share?

If (4x -­ 5) = (3x ­- 1), then the numerical value of (x + 4)2

A rectangular swimming pool of length 30 m and breadth 15 m has a uniformly sloping floor. It is 1 m in depth on one end of its length and 2 m at the other. How much water is needed to completely fill this pool?

In how many years will Rs 2,000 yield Rs 662 as compound interest at 10% per annum compounded annually?

What is the value of (32 cos6x – 48 cos4x + 18 cos2x – 1)/[4 sin x cos x sin (60 – x) cos (60 – x) sin (60 + x) cos (60 + x)]?

What is the unit digit of 15+25+35+...+205 ?

24 men can repair a road in 50 days. If they are joined by 16 more men, then in how much time (in days) the road can be repaired?