Quantitative Aptitude - Arithmetic Ability Questions

Rs. 782 is divided into 3 parts in the ratio 12:23:34, the first part is 

If Cosec θ = 17/8, then Cot θ = ?

Sashi can do a piece of work in 20 days. Tanya is 25% more efficient than Sashi. The number of days taken by Tanya to do the same piece of work is:

Two cars travel from city A to city B at a speed of 36 and 48 km/hr respectively. If one car takes 3 hours lesser time than the other car for the journey, then the distance between City A and City B is

35 persons are engaged to complete a work in 60 days. After 32 days it is observed that only (2/5)th part of the work has been done. The number of persons to be engaged to complete the remaining work in the said period is

What is the value of (2/√3 +tan45° ) ?

If 3n = 2187, then the value of n is:

If cosec2 θ = 625/576, then what is the value of [(sin θ – cos θ)/(sin θ + cos θ)]?