Quantitative Aptitude - Arithmetic Ability Questions

The ratio of spirit and water in the two vessels is 5 : 1 and 3 : 7 respectively. In what ratio the liquid of both the vessels should be mixed such that a new mixture containing half spirit and half water is obtained?

How much simple interest will Rs. 4000 earn in 18 months at 12% per annum?

Each member of a club contributes as much rupees and as much paise as the number of members of the club. If the total contribution is Rs. 2525, then the number of members of the club is

The average weight of 25 candles is 40 grams. If some candles of weight 50 grams each were removed, then average weight becomes 37.5 grams. How many candles of weight 50 grams each were removed? 

There is a circular garden of radius 21 metres. A path of width 3.5 metres is constructed just outside the garden. What is the area (in metres2) of the path?

In the following question, select the odd letter from the given alternatives.

Δ DEF is right angled at E. If m∠F = 45°, then what is the value of 2 Sin F x Cot F?

What is the simplified value of 22433+393-11253?