Quantitative Aptitude - Arithmetic Ability Questions

The total surface area of a hemisphere is 462 sq.cm. Find its diameter (in cm).

The volume (in cu.cm.) of a right circular cylinder with radius 1 cm and height 2 cm is: pi = 22/7

A factory buys 8 machines. 3 Machine­A, 4 Machine­B and rest Machine­C. Prices of the machines are Rs 45000, Rs 25000 and Rs 35000 respectively. Calculate the average cost (in Rs) of these machines?

Two circles touch each other internally. The radius of the smaller circle is 6 cm and the distance between the centre of two circles is 3 cm. The radius of the larger circle is

Simplify 81x2 - 49y29x + 7y

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

If the line DE is drawn parallel to the base BC of a triangle ABC by intersecting the other two sides, then which of the following is the CORRECT equation for this case.

Aparna changes the marked price of an item to 50% above its C.P. What % of discount allowed in approximately to gain 10%?