Quantitative Aptitude - Arithmetic Ability Questions

405 sweets were distributed equally among children in such a way that the number of sweets received by each child is 20% of the total number of children. How many sweets did each child recieve ?

If 75% of a number is added to 75, then the result is the number itself. The number is :

Consider the following for real numbers α, β, γ and δ ?

1) sec α = 1/4

2) tan β = 20

3) cosec γ = 1/2

4) cos δ = 2

How many of the above statements are not possible?

What should come in place of question mark (?) in the following number series?

38, 195, ?, 4905, 24530, 122655

An accurate clock shows 8 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon?

What will come in place of the question mark (?) in the following number series  ?

12, 24, 26.5, 79.5, ?, 330

If the diameter of a circle is 28 cm, then what will be its circumference (in cm)?

Simplify the following and find the value of ?

13 of ? + 47 of 114 of 539 = 31% of 2000