Question

the rectangular courtyard of length 20m,16cm and breadth 15m 60cm is paved with square stones of same size.find the least possible number of stones

Please tell the answer asap

Answer 1

20m16cm=2016cm
15m60cm=1560cm
1560=2*2*2*3*5*13
2016=2*2*2*2*2*3*3*7
HCF(2016,1560)=2*2*2*3=24
Hence the max dimensions of square tiles is 24cm*24cm