Quantitative Aptitude - Arithmetic Ability Questions

If tanθ = 815, then 1-sinθ1+sinθ is

If Cot θ = 21/20, then what is the value of Cosec θ?

Select the odd number from the given alternatives.

What is the value of (cot60 + 1/√3) ?

If 1/4th of the wall is painted blue, 1/2 is painted yellow and remaining 3 m is painted white, what is the length of the wall?

A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. The number is

If a perfect square, not divisible by 6, be divided by 6, the remainder will be

The salary of a person is reduced by 20% . To restore the previous salary, his present salary is to be increased by