Quantitative Aptitude - Arithmetic Ability Questions

The lengths of the two diagonals of a rhombus are 6 cm and 8 cm. Find the length of its perimeter (in cm).

The value of (0.00000729/0.00000027) is

25 - 1/2{5 + 4 - (3 + 2 - 1 + 3)} = ?

Find the total surface area (in cm²) of a right circular cylinder of diameter 28 cm and height 12 cm.

A girl walking at the speed of 2 km/hr covers a certain distance in 7 hours 30 minutes. If she covers the same distance by cycle in 5 hours, then what is the speed (in km/hr) of cycle?

0.196 + 1.96 + 19.6 + 196 = ?

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.

Three numbers are given in which the second is triple the first and is also double the third. If the average of the three numbers is 66. Find the first number.