Quantitative Aptitude - Arithmetic Ability Questions

Determine the value of a/b + b/a when a + b = 8 and ab = 4.

The shadow of a tower when the angle of elevation of the sun is 45°, is found to be 10 m longer than when it was 60° . The height of the tower is

What is the simplified value of (sec A + cos A)(sec A – cos A)?

Select the missing number.

If the diameter of the two circles is 6 units and 10 units and a centre distance of 8 units. Calculate the number of common tangents that can be drawn to both the circle.

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

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Reflection of the point (­2,5) in the x­ axis is