Quantitative Aptitude - Arithmetic Ability Questions

In a triangle the length of the side opposite the right angle is 9√3 cm, what is the length of the side opposite to the angle which measures 30 degree?

The population of a town is 350000. It increases annually at the rate of 20%. What will be the population after 2 years?

15% of a number, when added to 30% of another, gives 24% of the sum of the two numbers. The bigger number is 4 more than the smaller one. What are the numbers?

In the following question, select the odd number pair from the given alternatives.

If 2x + 3y – 5z = 18, 3x + 2y + z = 29 and x + y + 3z = 17, then what is the value of xy + yz + zx?

If A has got 20% more marks than B, then by what percent marks of B are less than the marks of A?

If x+1x=-2,then the value of x7+1x7

The marked price of a sofa set is Rs 4800 which is sold at Rs 3672 at two successive discounts. If the first discount is 10%, then what will be the second discount (in %)?