Quantitative Aptitude - Arithmetic Ability Questions

If the length of the side of an equilateral triangle is 6 cm, what is its area?

In a class of 55 students there are 34 girls. The average weight of these girls is 51 Kg and average weight of the full class is 55.2 kgs. What is the average weight of the boys of the class?

The average of three numbers is 40. First number is 4/3 of the third number. If third number is 20 less than second number, then what is the value of second number?

If the angle of elevation of the top of a pillar from the ground level is raised from 30° to 60°, the length of the shadow of a pillar of height 503 will be decreased by

The areas of a circle and square are equal. What is the square of the ratio of length of diameter to the length of diagonal?

If x+y+z = 0, then what is the value of x23z+y33xz+z23x ?

Find out the odd word/letters/number/number pair from the given alternatives.

When a number is increased by 105, it becomes 135% of itself. What is the number?