The number of people who travelled by Train  A decreased by what percent from Saturday to Tuesday

What is the average number of people travelling by Train A on Monday, Tuesday, Wednesday and Thursday

What is the difference between the total number of people who  travelled by Train B on Monday and Tuesday together and the total number of people who travelled by Train A on Saturday and Sunday together

The number of people who travelled by Train B on Friday is 20% more than the people who travelled by the same train on Thursday. What is the respective ratio between the number of people who travelled on Friday and those who travelled on Saturday by the same train

In the above diagram, parallelogram represents women, triangle represent the sub-inspectors of police and circle represents the graduates. Which numbered area represents women graduate sub-inspectors of police

What is the hybridisation of carbon in HC = N