Maths-
General
Easy
Question
The number of students absent in a class were recorded every day for 120 days and the information is given in the following frequency table Then the mean number of students absent per day is
- 3.325
- 3.425
- 3.525
- 4.525
The correct answer is: 3.525
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chemistry-General
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A body of mass 1.5 kg slide down a curved track which is quadrant of a circle of radias 0.75 meter. All the surfaces are frictionless. If the body starts from rest, its speed at the bottom of the track. is ..... 
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physics-General
