Quantitative Aptitude - Arithmetic Ability Questions

P and Q are at a distance of 240 km from each other at 9:00 a.m. After 1 hour, P starts moving towards Q at a speed of 25 km/hr. At 11 a.m. Q startsmoving towards P at the speed of 18 km/hr. At what time (in p.m.) will they meet?

If X+Y=3,XY=2, find the value of X3-Y3

A square is inscribed in a quarter circle in such a way that two of its adjacent vertices on the radius are equidistant from the centre and other two vertices lie on the circumference. If the side of square is √(5/2) cm, then what is the radius (in cm) of the circle?

What is the value of 143 + 163 + 183 + ... + 303?

When a discount of Rs. 42 is allowed on the marked price of an article, the new reduced price becomes 86% of the original price. Find the marked price.

The orthocentre of an obtuse­angled triangle lies

The value of 1/64 is equal to square of

If x = 1.1, then what is the value of 4x2 -4x + 1 ?