Quantitative Aptitude - Arithmetic Ability Questions

2 ­- (cosA + sinA)2 is equal to

If (sinA + CosA)/(sin A - cos A) = 5/4, the value of (tan2A + 1)/(tan2A - 1) = ?

What should be the missing digit so that the number 275_476 becomes exactly divisible by 11?

Select the odd number from the given alternatives.

If the amount received at the end of 2nd and 3rd year at compound Interest on a certain Principal is Rs 9,600 and Rs 10,272 respectively, what is the rate of interest (in %)?

ΔABC is right angled at B. If m ∠A = 60°, then what is the value of 1/√3 Cosec C?

On dividing a number by 47, we get 75 as quotient and 18 as remainder. What is the number?

Pipe A can empty a filled tank in 28 hours while Pipe B can fill the same tank, when empty in 35 hrs. If alternatively Pipes A and B are turned on for an hour each time, starting when the tank is full, how long will it take to empty the tank?