Question

A rectangular courtyard with a length of 10m 50cm and a breadth of 4m 20cm is to be paved with square stones of the same size. The least no. of such stones required are __

Pls, post with an explanation..

Answer 1

Answer:

375 square slabs.

Explanation:

Length of the courtyard= 10 m 50 cm

= 150 cm

Breadth of the courtyard= 4 m 20 cm

= 420 cm

Area of Courtyard= (l*b) sq unit

= (150*420) sq cm

= 63000 sq cm.

Side of square stones= 420 cm

Perimeter of square stones= 4*(S)cm

= 4* (420)cm

= 168 cm

No. of square slabs needed= 63000÷168

= 375 square slabs.