The tutor _ her students to take notes 1.said 2.talk 3.tell 4.told

While describing the experiment of study of properties of HCl and NaOH by their reaction with zinc metal, the teacher told her students that zinc metal shows amphoteric nature. It means that

What should a teacher tell her students to encourage them to do tasks with intrinsic motivation?

There are (2a+16) students in a Coaching Institute with three streams, i.e. Engineering, medical & Commerce. The ratio of students who take Energineering to Medical is 4:1. Find total number of students in Coaching Institute. A. Total students who take Engineering are 8 more than total students who take Commerce and probability of selecting one student who take Medical is 1/8. B. Total Commerce students in class are 25% less than total Engineering students in the Coaching Institute.

There was a group of six students who took a test. Another student joined the group after taking the test later. With her marks included the average score of the group went up by 3. This student has got ............ marks more than the average marks without her being included.