Barb has 25 sweets. She has 17 liquorice sweets, 3 mint sweets and 5 humbugs.
Barb is going to take at random two sweets.
Work out the probability that the two sweets will not be the same type of sweet.
Give your answer as a fraction.

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.