Quantitative Aptitude - Arithmetic Ability Questions

If P=9, Q=17 then the value of p2-q2-13

Select the odd letters from the given alternatives.

25% discount is offered on an item. By applying a promo code the customer wins 4% cash back. What is the effective discount?

Ganesh invested an amount of Rs x in a fixed deposit scheme offering 5% per annum for 1st year and 15% per annum for 2nd year and received an amount of Rs 9660 after two years. What is the value of x (in Rs)?

Solution A contains 10% acid and solution B contains 30% acid. In what ratio should solution A be mixed with Solution B to obtain a mixture with 25% acid?

Two cars A and B travel from one city to another city, at speeds of 60 km/hr and 108 km/hr respectively. If car B takes 2 hours lesser time than car A for the journey, then what is the distance (in km) between the two cities?

In how many years will Rs 2,000 yield Rs 662 as compound interest at 10% per annum compounded annually?

In a school there are 1500 students, 44% of them are girls. Monthly fee of each boy is 540 and fee of each girl is 25% less than that of a boy. The sum of fees of boys & girl is