Quantitative Aptitude - Arithmetic Ability Questions

A certain bank offers 8% rate of interest on the 1st year and 9% on the 2nd year in a certain fixed deposit scheme. If Rs 17,658 are received after investing for 2 years in this scheme, then what was the amount (in Rs) invested?

If √(1 - cos2A) = x, then the value of x is

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

What is the value of 5.6x0.36+0.42x3.20.8 x 2.1 ?

What is the angle between the two hands of a clock when the time shown by the clock is 8 p.m.?(in degrees)

A pentagonal prism has 15 edges. How many vertices does it have?

The length of the two parallel sides of a trapezium are 16 m and 20 m respectively. If its height is 10 m, its area in square metres is

Aditya got 78% marks in the examination. If he secured 663 marks, find the maximum marks.