A strip of width 4 cm is cut out all round from a sheet of paper with dimensions 30 cm × 20 cm. Find the area of the strip cut out and the area of the remaining sheet.

Question

( A ) $254 cm^2, 330 cm^2$
( B ) $244 cm^2, 310 cm^2$
( C ) $274 cm^2, 340 cm^2$
( D ) $264 cm^2, 336 cm^2$