Quantitative Aptitude - Arithmetic Ability Questions

If 2/3(6x/5 - 1/4) + 1/3 = 9x/5, then what is the value of x?

The sum of money that will yield Rs. 60 as simple interest at 6% per annum in 5 years is

A can finish a work in 7 days . B can finish the same work in 9 days . The days required to finish the work by both of them together.

Five women can do a work in 36 days. If the ratio between the capacity of a man and a woman is 3:1, then find how many days it will take 5 men to complete the same woek?

A vendor buys pens at the rate of 4 for Rs 5 and sells at the rate of 4 for Rs 3. What will be the result?

If 5x + 1/x = 10, then x2 + 125x2 is equal to

Kamal has some apples. He sold 40% more than he ate. If he sold 70 apples, how many did he eat?

A boy found the answer for the question "Subtract the sum of 1/4 and 1/5 from unity and express the answer in decimals" as 0.45. The percentage of error in his answer was