The average height of a class of 50 students is 170cm, What will be the avergae height (in cm, rounded off to the nearest integer) of the rest of the students if the average height of 15 of the students is 180cm?
A sum of 15,345, when invested at a certain rate of simple interest per annum for 10 years, earns an interest of Rs.2,672.50 on maturity: What is the rate of simple interest per annum?
The speed of a boat in still water is 30 Km/h and the speed of the stream is 7.5 km/h. What is the time in hours taken by the boat in the stream to go from point A to B and then back to A covering a total distance of 90 km?
Anil works 3 times as fast as Sumit. If Sumit can complete a work in 12 days independently, then the number of days in which Anil and Sumit can togetherfinish the work will be?
The following graph refers to the distance jogged daily by two persons A and B.
If 100 calories are burnt by jogging 1km, what is the difference between the calories burnt by A and B in the given week?
