Quantitative Aptitude - Arithmetic Ability Questions

Mummy can bake 75 cakes in 15 hours, Mummy and Sister together can bake 120 cakes in 20 hours. How many cakes Sister can bake in 30 hours?

BE and CF are two altitudes of a triangle ABC. If AB = 6 cm , AC = 5 cm and CF = 4 cm , then the length of BE is

If a retailer offers a discount of 28% on the marked price of his goods and thus ends up selling at cost price, what was the % mark up?

Product of three consecutive odd numbers is 1287. What is the largest of the three numbers?

tan(A/2) is equal to

If 3 tan θ = cot θ where 0 < θ < π/2, then what is the value of θ ?

If a - b = 1 and ab = 6, then what is the value of a3- b3?

The marked price of a book is Rs 4200. The shopkeeper gives two successive discounts of 25% and y% to the customer. If the customer pays Rs 2898 for the book, then what is the value (in percentage) of y?