Quantitative Aptitude - Arithmetic Ability Questions

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.?

The diameter of a circle is 28 cm find its area?

The value of aa-b+bb-a is

If a retailer offers a discount of 28% on the marked price of his goods and thus ends up selling at cost price, what was the % mark up?

If x2+y2+z2-8x+6y-4z+29 = 0, then find the value of z(x+y).

If x+1x = 2, then x2+1x2 = ?

The average revenues of 7 consecutive years of a company is Rs 75 lakhs. If the average of first 4 years is Rs 70 lakhs and that of last 4 years is Rs 82 lakhs, what will be the revenue for the 4th year.

A certain sum of money becomes 4 times of itself in 30 years at a rate of simple interest. In how many years it will become double of itself at the same rate of simple interest?