Normal body temperature is 37 degrees Celsius. Jim's carer took his temperature at 3.00pm and it was at the body's normal temperature. When she took it again at 4.00pm, it had risen to 39.9 degrees Celsius. As this was a very high temperature, Jim's carer was advised to take his temperature again in half an hour's time. 1. How many degrees had Jim's temperature increased by in an hour