Quantitative Aptitude - Arithmetic Ability Questions

If 3+12=x+3y, then the x+y is 

The lengths of diagonals of a rhombus are 24cm and 10cm the perimeter of the rhombus (in cm ) is :

A sum of Rs 4000 becomes Rs 7000 in 6 years at simple interest. If the rate of interest becomes double of itself, then what will be the amount (in Rs) after 6 years?

If  x = 2+3,then what is the value of 2x + 12x ?

How much does one need to add to 2/3 to obtain 3/2?

What is the reflection of the point (-4, 3) in the line x = -2?

What is the area (in sq cm) of an equilateral triangle of side 14 cm?

Select the odd word from the given alternatives.