What is the minimum number of square tiles required to tile a floor of length 5 metres 78 cm and width 3 metres 74 cm?
Choose the correct choice from the following options
A) 187
B) 180
C) 190
D) 195
E) 197

Rationale: length = width = = > square = 5 m 78 cm and 3 m 74 5 m 78 cm = 578 cm and 3 m 74 cm = 374 cm hcf of 578 and 374 = 34 square is 34 = 578 * 374 / 34 * 34 = = 17 * 11 = 187 answer a
Answer: A