Quantitative Aptitude - Arithmetic Ability Questions

If tanθ = 815, then 1-sinθ1+sinθ is

(secA - 1)/(secA + 1) is equal to?

D and E are the points on the sides AB and AC respectively of a ΔABC and AD = 8 cm, DB = 12 cm, AE= 6 cm and EC = 9 cm, then BC is equal to:

Find the number of prime factor of 20790.

A mixture contains liquid A and liquid B in the ratio of 5 : 4. If 2 litres of liquid B is added to it, then the ratio of liquid A and liquid B becomes 7 : 6. What is the quantity (in litres) of liquid A in the mixture?

M borrowed some money for 1 year at certain simple interest. But the interest rate was increased to 2% which amounted to Rs.120. Find the principal amount.

Two trains are moving in opposite directions with the same speed. If the length of each train is 120 metres and they cross each other in 12 seconds, then what is the speed (in km/hr) of each train?

On selling 120 bottles, Vijay earns profit equal to the cost price of 10 bottles. What is the profit percentage?