Quantitative Aptitude - Arithmetic Ability Questions

Number of circles that can be drawn through three non-colinear points is

The denominator of a rational number exceeds its numerator by 10. If the numerator is increased by 4 and the denominator is reduced by3, the number obtained is 5/6. The original rational number is

If [4(2x/5 - 3/2)]/3 + 7/5 = 37/5, then what is the value of x?

Two trees are standing along the opposite sides of a road. Distance between the two trees is 400 metres. There is a point on the road between the trees. The angle of depressions of the point from the top of the trees are 45 deg and 60 deg. If the height of the tree which makes 45 deg angle is 200 metres, then what will be the height (in metres) of the other tree?

What is the value of (tan60 - 1/3) ?

In the following question, select the odd letter/letters from the given alternatives.

Find the total surface area (in cm²) of a right circular cylinder of diameter 42 cm and height 14 cm

Dodecahedron has 30 edges. How many vertices does it have?