Quantitative Aptitude - Arithmetic Ability Questions

If the circum radius of the equilateral triangle is 12 cm then what is the value of in radius (in cm) of the triangle?

A and B can complete a piece of work in 10 days and 15 days respectively. B starts the work and is joined by A after 5 days. If they earn a total of Rs. 60, what are their individual shares?

The order of rotational symmetry of a trapezium is

The 3rd and 6th term of an arithmetic progression are 19 and 37 respectively. What is the 13th term?

A 25m long ladder is rested on a wall. The foot of the ladder is 7m away from the wall. If the end of the ladder (resting on the wall) slides down 4m, then how far will its foot move away?

 What is the value of (sin60° - 2/√3) ?

23 x 31 = 713. How much is 0.0713 / 3.1?

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.