Quantitative Aptitude - Arithmetic Ability Questions

Marked price of a chair is Rs 800 and discount is 15%. What is additional discount (in percentage) should be offered to the customer to bring the price of chair to Rs 578?

If a+b+c = 0, then (a^3 + b^3 + c^3)^2 = ?

A wooden bowl is in shape of a hollow hemisphere of internal radius 7 cm and thickness 1 cm. What is the total surface area (in sq.cm) of the bowl? (Take:  = 22/7)

X can complete a task in 8 days, whereas Y can complete the same task in 10 days. If they work together, in how many days will the task be completed?

The length of a median of an equilateral triangle is 12√3 cms. Then the area of the triangle is

What is the value of tan 7π/6?

If 4x - 7y = 3 and 2x - y = 9, then x - y is.

One of the diagonal of a rhombus is 70% of the other diagonal. What is the ratio of area of rhombus to the square of the length of the larger diagonal?