Quantitative Aptitude - Arithmetic Ability Questions

If 9x+2 = 240 + 9x, the value of (8x)x is

If 7x + 6y = 5xy and 10x ­- 4y = 4xy, then value of x and y is

If x, y, z are the three factors of a3 -7a - 6, then value of x+y+z will be

If 3x2 = 102 - 52, find the value of x?

In the given series of numbers how many 7's are there which are immediately followed by 9 and immediately not preceeded by 5 ?

What is the measure of the smaller of the two angles formed between the hour hand and the minute hand of a clock when it is 5:49 p.m.?

If x+19x=4, then 9x2+19x2 is

50 litre mixture of water and alcohol contains 10% alcohol. How much more alcohol must be added to make the strength of alcohol 40% in the new mixture?