A rectangular field has length 32 cm and breadth 20 cm. How many square tiles of 4 cm should be used to cover the rectangular field?
Answer & explanation
Correct answer: option 1
Area of rectangular field = l × b = 32 × 20
Area of 1 square tile = a2 = 42 = 16
No. of tiles = \(\frac{Area\;of\;field}{Area\;of\;tile}\) = \(\frac{32\;×\;20}{4\;×\;4}\) = 40