Quantitative Aptitude - Arithmetic Ability Questions

If (x - 13)2 + (y - 4)2 = 0, then the value of y + xy - x ?

If a+b+c=15 and 1a+1b+1c=71abc, then the a3+b3+c3-3abc is

If the length of the shadow of a vertical pole be √3 times the height of the pole, the angle of elevation of the sun is:­

Three runners A,B and C run a race, with runner A finishing 12 meters ahead of runner B and 18 meters ahead of runner C, while runner B finishes 8 meters ahead of runner C. Each runner travels the entire distance at a constant speed. The length of the race is

The largest chord of the circle has a length of 20.4 cm. The radius of the circle will be _____.

A right circular cylinder is partially filled with water. Two iron spherical balls are completely immersed in the water so that the height of the water in the cylinder rises by 4 cm. If the radius of one ball is half of the other and the diameter of the cylinder is 18 cm, then the radii of the spherical balls are

Saathi deposited Rs. 825 in a bank that promised 8% simple interest per annum. If Saathi kept the money with the bank for 5 years, she will earn an interest of

Two trains are moving in opposite directions with the same speed. If the length of each train is 120 metres and they cross each other in 12 seconds, then what is the speed (in km/hr) of each train?