Quantitative Aptitude - Arithmetic Ability Questions

Pick the odd one out from the following

Sum of twice a fraction and 5 times its reciprocal is 7. What is the fraction?

The HCF of 36,54 and 108 is

Among four bags, average weight of last three bags is 18 kg and the average weight of first three bags is 19 kg. If the weight of last bag is 22 kg, then what is the weight (in kg) of first bag?

Simple interest on a certain sum of money for 3 years at 5% per annum is Rs. 5250. What will be the compound interest on that sum at the same rate for the same period?

Ms. Kavitha borrowed Rs. 950 at 6% per annum simple interest. What amount will she pay to clear her debt after 4 years?

The lengths of two parallel sides of a trapezium are 21 cm and 9 cm. If its height is 10 cm, then what is the area (in cm2) of the trapezium?

The ratio between the vertical angle and a base angle of an isosceles triangle is 4:3. The value of any one base angle is