Quantitative Aptitude - Arithmetic Ability Questions

[sinA/(1 + cosA)] + [(1 + cosA)/sinA] is equal to

What is the value of sin ­7π/4c?

If sec -7π/4 = x, then the value of x is

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

The mean score in a test of the 12 boys in a class was 16 while the overall mean of the 30 students in the class was 18.1. What was the mean score of the girls?

In triangle PQR, the sides PQ and PR are produced to A and B respectively. The bisectors of ∠AQR and ∠BRQ intersect at point O. If ∠QOR = 50°, then what is the value (in degrees) of ∠QPR?

If a sum of money doubles itself in 8 yrs, then the interest rate in percentage is ?

A sum fetched a total simple interest of Rs 5320 at the rate of 7% per year in 5 years. What is the sum?