Answer :
Final answer:
The total mass of the three riders is found by summing their individual masses: 54 kg + 67 kg + 52.5 kg, which equals 173.5 kg.
Explanation:
The question requires us to find the total mass of the three riders with masses of 54 kg, 67 kg, and 52.5 kg respectively. The total mass can be found by simply adding these three values together:
54 kg + 67 kg + 52.5 kg = 173.5 kg
Therefore, the correct answer is (b) 173.5 kg. This answer is reasonable because it falls in the range of expected total mass for three individual riders.
