Quantitative Aptitude - Arithmetic Ability Questions

199994 x 200006 = ?

List price of TV is Rs. 2300 and discount series found to be 25% and 10%. Then the selling price of TV is

If x - y = -8 and xy = 45, then (x2 + y2) is

2sin[(C+D)/2].sin[(D­-C)/2] is equal to

If Sinx = 4/5, then Sec2x - 1 = ?

To cover a certain distance with a speed of 60 km/hr, a train takes 15 hours. If it covers the same distance in 12 hours, what will be its speed?

The age of Dr. Pandey is four times the age of his son. After 10 years , the age of Dr. Pandey will be twice the age of his son . The present age of Dr. Pandey's son is

Two students appeared for an examination. One of them secured 26 marks more than the other and his marks were 75% of the sum of their marks. The marks obtained by them are