Quantitative Aptitude - Arithmetic Ability Questions

The number of diagonals in a hendecagon is

Marked price of an item is Rs 300. On purchase of 2 items discount is 24%, on purchase of 5 items discount is 38%. Rachna buys 7 items, what is the effective discount?

30% discount is offered on an item. By applying a promo code the customer wins 20% cash back. What is the effective discount?

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

Select the odd word/letters/number/number pair from the given alternatives.

If sin 30° + cos 45° = X, then the value of X.

The diagonal of a square is 10√2 cm, find its perimeter?

A cylindrical vessel of radius 8 cm is partially filled with water. By how much will the water level rise if a sphere of radius 7 cm is completely immersed in this water?