Exams

The mean of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. Find the mean of marks of the students of three divisions of Class X.

Electrons can be deflected by which of the following?

The Chemical formula of Cadmium nitrate is _____.

If 4(4x + 5) > 2x - 1 > 4x - 3, then the value of x is

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

He is now very old, yet grandfather still is the _______________ head of my extended family.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Once ______________, it is that time of the year when the examination results season may be just ending and the admissions season is in progress, and marked by a _________________ of two contradictory voices — often from the same people — that rose to deafening ____________ from April to May when the results of various school boards _________________. The first voice __________________ those who succeeded and did wondrously well.

Once ______________,

Which of the following green house gases has the greatest heat-trapping ability?

Which one of the following is a water soluble vitamin?