Quantitative Aptitude - Arithmetic Ability Questions

What is the value of (cosec30 - 1/√3)?

For which value of ‘g’ the linear graph of 6x + 12y +9 = 0 and 2x + gy + 3 =0 has infinite number of solutions?

The upstream speed of the boat is 40 kmph and the speed of the boat in still water is 55 kmph. What is the downstream speed of the boat?

The average runs conceded by a bowler in 5 matches is 45 and 15.75 in other 4 matches. What is the average runs conceded by the bowler in 9 matches?

The average of three numbers is 40. First number is 4/3 of the third number. If third number is 20 less than second number, then what is the value of second number?

If 2x-2x=1 (x≠0),then the value of x3-1x3 is

Speed of a boat along and against the current are 14 kms/hr and 8 kms/hr respectively. The speed of the current is

If cos 45° - ­ sec 30° = x, then value of x is