Quantitative Aptitude - Arithmetic Ability Questions

What is the value of Tan 45° - 1/√3 Sec 60°?

Deepti bought a set of cups for Rs. 175, but then had to sell it later to clear old stocks for Rs. 161. What is the percentage of loss that she had to incur?

Six years ago, the ratio of the two persons P and Q was 3 : 2. Four years hence the ratio of their ages will be 8 : 7. What is P's age?

If cosec∅+sin∅cosec∅-sin∅=53 then the value of sin∅is equal to

The distance between the points (7,7) and (k,-5) is 13. Find k?

Which one of the following is an irrational number?

Find the value of 777777?

If a+1b=1 and b+1c=1 , then the value of c+1a is