Quantitative Aptitude - Arithmetic Ability Questions

A box contain equal number of 1 rupee, 2 rupee and 5 rupee coins. If the total amount is Rs 184, then how many coins of each type are there?

A boat is moving away from an observation tower. It makes an angle of depression of 60° with an observer's eye when at a distance of 50m from the tower. After 8 sec., the angle of depression becomes 30°. By assuming that it is running in still water, the approximate speed of the boat is

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

The sum of two numbers is equal to thrice their difference. If the smaller of the numbers is 10 find the other number.

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

What is the reflection of the point (5, 2) in the line x = -3?

Calculate the ratio of the area of two similar triangles if the sides of the triangles are in the ratio of 9:4.

The length of one side of a rhombus is 41 cm and its area is 720 sq.cm. What is the sum of the lengths of its diagonals?