Quantitative Aptitude - Arithmetic Ability Questions

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

If 2x - 5y = 5 and 2x - y = 9, then x - y is ______.

If 5x ­- 40 = 3x, then the numerical value of 2x -­ 11 is

What is the value of √2 Sec 45° + (1/√3)Tan 30°?

The value of x for which the expressions 15 ­ 7x and 15x + 7 become equal is _____.

What is the value of Sin 30° - Cosec 45°?

The ratio of present ages of Ramita and Satyajit is 9:7. After 9 years the ratio of their ages will be 5:4. What is Ramita's present age?

Two donkeys are standing 400 meters apart. First donkey can run at a speed of 3 m/sec and the second can run at 2 m/sec. If two donkeys run towards each other after how much time (in sec) will they bump into each other?