Quantitative Aptitude - Arithmetic Ability Questions

If a+1a2=3,then the value of a2+1a2 will be

3 hrs after a goods train passed a station, another train travelling at a speed of 88 km/hr following that goods train passed through that station. If after passing the station the train overtakes the goods train in 8 hours. What is the speed of the goods train?

The rate of simple interest per annum at which a sum of money double itself in 16 2/3 yrs is

The perimeters of a square and an equilateral triangle are equal. If the diagonal of the square is 9 cm, what is the area of the equilateral triangle?

On dividing 111a2b2c2 by37a2, we get ______.

Aditya got 78% marks in the examination. If he secured 663 marks, find the maximum marks.

If √(1 - cos2A) = x, then the value of x is