Quantitative Aptitude - Arithmetic Ability Questions

The diagonals of two squares are in the ratio 5:2.The ratio of their area is

The arithmetic mean of the marks scored by students of a class is 58. 20% of them secured a mean score of 60. The mean score of another 30% of the students was 40. The mean score of the remaining students is

Find the curved surface area (in cm2) of a right circular cylinder of diameter 28 cm and height 12 cm.

PQ is a diameter of a circle with centre O. RS is a chord parallel to PQ subtends an angle of 40° at the centre of the circle. If PR and QS are produced to meet at T, then what will be the measure (in degrees) of ∠PTQ?

The point equidistant from the vertices of a triangle is called its

The ratio of the number of boys and girls in a school is 3:2. If 20% of the boys and 25% of the girls are scholarship holders, the percentage of the school students who are not scholarship holders is

Weight of A and B are in the ratio 11 : 8. A’s weight increases by 40% and the total weight of A and B increases by 30%. What is the percentage increase in the B’s weight?

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