sentence1: If Cara is 110 km away from Dan at 7 am , and also 110 km away from Dan at 11 am , then how fast is Dan driving ( in kilometers per hour ) ?
sentence2: If Cara is less than 210 km away from Dan at 7 am , and also 110 km away from Dan at 11 am , then how fast is Dan driving ( in kilometers per hour ) ?