Quantitative Aptitude - Arithmetic Ability Questions

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

What is the unit place digit in the expansion of  773?

A school has 8 periods of 45 minutes each, every day. How long will each period be if the school has to have 9 periods everyday, assuming the working hours to be the same?

A train is moving at the speed of 72km/hr. How many seconds will it take to cover a distance of 1400 m ?

If the salary of Manoj is 40% less than that of Subhash, then by how much percentage is the salary of Subhash more than that of Manoj?

The marked price of a sofa set is Rs 4800 which is sold at Rs 3672 at two successive discounts. If the first discount is 10%, then what will be the second discount (in %)?

If the perimeter of a semi-circle is 108 cm, then find its radius (in cm).

The point Q(a,b) is first reflected in y­axis to Q1 and Q1 is reflected in x­axis to (­6,2). The co­ordinates of point Q are