Quantitative Aptitude - Arithmetic Ability Questions

If a-1a=1, then a2 + 1a2 ?

The ratio of the cost price and selling price of an article is 5 : 3. What is the loss percentage?

When a number x is divided by a divisor it is seen that the divisor = 4 times the quotient = double the remainder. If the remainder is 80 then the value of x is

The sum of three numbers is 2, the 1st number is 1/2 times the 2nd number and the 3rd number is 1/4 times the 2nd number. The 2nd number is

The ratio of the present ages of Reena and her husband is 4 : 5. 8 years from now, ages of her husband and her son will be in the ratio 24 : 9. If the present age of Reena is 32 years, then what will be her son’s present age (in years)?

A person bought an item for Rs. 1500 and sold it at a profit of 12%. What was the selling price of the item?

What is the value of cosecA/√(cosec2A ­- 1)?

Find the value of '?' in 512 × 125 ÷ 15625 = 3125 × 25?