For the following questions answer them individually
The Table given below shows the number of students having obtained different marks.
What is the mean marks per student?
If $$\frac{a}{b} = \frac{3}{4}, \frac{b}{c} = \frac{4}{5} and \frac{c}{d} = \frac{5}{6}$$, then the sum of the numerator and the denominator (which are coprimes) of $$\left(\frac{a}{d}\right)^{10}$$ is:
A man leaves from P at 6 am and reaches Q at 2 pm on the same day. Another man leaves Q at 8 am and reaches at 3 pm on the same day. At what time do they meet?
The Table given below presents the number of books on different subjects kept on separate shelves. Subjects with odd and even numbers are of Arts and Science respectively.
What is the ratio of the total number of books on Arts to that of Science?
Two teachers A and B can complete an academic work in 10 days and 15 days respectively. They started the work together, but A left after 5 days and another teacher C joined, who alone can complete the work in 60 days. In how many days the work got completed?
Which article of Indian constitution deals with discrimination against any Indian citizen on various grounds?