Quantitative Aptitude - Arithmetic Ability Questions

If x = x2+11 2 - 2, then x3 + 5x2 + 12x is

ABC is an equilateral triangle of side 6 cm. If a circle of radius 1 cm is moving inside and along the sides of the triangle, then the locus of the centre of the circle is an equilateral triangle of side is

Choose the odd word/letters/number/number pair from the given alternatives.

If cos 60° - sec 30° = x, then the value of x is

Pipe A can fill an empty cistern in 4 hours while along with Pipe B it can fill it up in 3 hours. Only Pipe A is turned on for an hour after which Pipe B is also turned on. How much total time will it take to fill up the cistern?

Pihu and Aayu are running on a circular track of diameter 28m. Speed of Pihu is 48 m/s and that of Aayu is 40 m/s. They start from the same point at the same time in the same direction. When will they meet again for the first time?

A, B and C can work together for Rs. 550/- A and B together are to do 7/11 of the work. The share of C should be?

The mean of marks secured by 35 students in division A of class X is 65, 45 students of division B is 61 and that of 70 students of division C is 59. What is the mean of marks of the students of three divisions of Class X?