Sumo 4. A train moving with the speed of 30 km per hour travelled from Kamalapur station to Narayangonj station. If the speed of the train was 25 km per hour, it would take 10 minutes more for the journey. What is the distance between the two stations ?

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?