Quantitative Aptitude - Arithmetic Ability Questions

In ΔPQR, S and T are points on side PQ and PR respectively. ST is parallel to QR. If S divides PQ in the ratio 4:3 and length of QR is 4.9 cm, find ST?

What is the area (in sq cm) of a regular hexagon of side 14 cm?

The area of a semicircle is 1925 cm2. Calculate its perimeter (in cm).

In what ratio does the point T(x,0) divide the segment joining the points S(-4,-1) and U(1,4)?

AD is the Median of Δ ABC. If O is the centroid and AO = 10 cm then OD is

The curved surface area of a hemisphere is 27.72 sq cm and volume is 19.404 cubic cm, find its radius?

The average of 10 numbers is 30. If at the time of calculation one number was wrongly taken as 36 instead of 69, then what will be the correct average?

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