Quantitative Aptitude - Arithmetic Ability Questions

Which of the following can't be the unit's digit of a perfect square?

The perimeter of two similar triangles is 36 units and 48 units. Find the ratio of their corresponding areas.

Find the volume (in cm3) of a cuboid of length, breadth and height of 8.5 cm, 6 cm and 7 cm respectively.

Slope of the side DA of the rectangle ABCD is 1/3. What is the slope of the side AB?

What will be the maturity value, if Rs. 13,500 is deposited at a simple rate of interest of 12.5% for two years?

What will come in the place of the question mark (?) in the following number series?305, 338, 404, 503, 635 , (?)

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.

Two ships are sailing in the sea on the two sides of a light house. The angle of elevation of the top of the light house as observed from the two ships are 30° and 45° respectively. If the light house is 100m high, the distance between the two ships is :(take √3=1.73)