The height distribution of 50 students in a class is as follows: Class interval: 140-145, 145-150, 150-155, 155-160, 160-165 Frequency: 12, 14, 8, 6, 10 Find the class mark for the class interval 155-160.

Which of the following territories was annexed by Lord Dalhousie under the pretext of misgovernance, and not directly through the Doctrine of Lapse?

What was the primary stated reason for the Partition of Bengal in 1905 by Lord Curzon?