Quantitative Aptitude - Arithmetic Ability Questions

One diagonal of a rhombus is half the other. If the length of the side of the rhombus is 20 cm, what is the area of the rhombus?

1/3 part of a certain journey is covered with the speed of 25 km/hr, 1/2 part of the journey is covered with the speed of 45 km/hr and the remaining part covered with the speed of 37.5 km/hr. What is the average speed (in km/hr) for the whole journey?

Both X and Y together can complete a work in 12 days and Y alone can complete the same work in 30 days. In how many days will X alone complete the work?

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 5% per annum is Rs 45. The sum is

Cost price of a watch is Rs 530. If the loss percentage is 24%, then what is the value (in Rs) of loss?

If 7x ­- 5y = 13 and 2x -­ y = 5, then (x -­ y) is

Choose the word is least like the other words in the group

20% of a = b, then b% of 20 is the same as _________ of a.