Quantitative Aptitude - Arithmetic Ability Questions

If Sumita earns 75/4% more than her boyfriend, find the approximate % her boyfriend earns less than Sunita.

The marked price of a pen is Rs 3000. The shopkeeper gives two successive discounts of 15% and a% to the customer. If the customer pays Rs 2142 for the pen, then what is the value (in percentage) of a?

Expanded and simplification of (x + 3)(x - 1) will be equal to

 In the following question, select the odd letter/letters from the given alternatives.

If 4x + 3y = 11 and 3x + 2y = 8, then (x,y) is

Dipali bought a set of cups for Rs. 375, but then had to sell it later to clear old stocks for Rs. 345. What is the percentage of loss that she incurred?

Which of the following quadratic equations has real roots?

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?