Quantitative Aptitude - Arithmetic Ability Questions

The length of a diagonal in cms of a rectangle of length 5 cm and width 3 cm is

A, B, C started a business with their investments in the ratio 1:3 :5. After 4 months, A invested the same amount as before and B as well as C withdrew half of their investments. The ratio of their profits at the end of the year is :

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

7, 10, 16, 28, ?, 100

If one needs to score 34% to pass a test, the pass marks out of 40 would be:

Find the odd one out of the following number series?

56, 64, 48, 90, 16, 144

What approximate value will come in place of the question mark(?) in the below question?

(47% of 1442  - 36% of 1412) + 63 = ?

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?

 A pupil's marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half. The number of pupils in the class is :