Study the information carefully to answer the question that follow.
In a college there are 900 students who are doing Post Graduation (PG) in any one of the subjects, out of five different subjects, out of the five different subjects viz. Zoology, Botany, Mathematics, Physics and Statistics. The ratio between the boys and the girls among those is 5:4 respectively, 20% of the total girls are doing PG in Zoology and 25% of the total girls are doing PG in Statistics. Total number of students doing PG in Botany is 220. Total students who are doing PG in Mathematics is 150. Respectively ratio between the number of girls and the number of boys doing PG in statistics is 2:3. Twenty percent of the total number of boys are doing PG in Mathematics is 1:2 respectively. There are equal number of boys and girls who are doing PG in PG in Physics. 180 students are doing PG in Zoology.
In which PG course the number of girls is the highest and in which course the number of boys is the lowest (respectively)?

Find the value tanθ-cosθ in the given figure.

If 5^a=3125, then the value of 5^(a-3) is:

Direction: What should come in place of the question mark (?) in the following number series?
0.5, 2, 9, 35, 104, ?

A worker suffers a 20% cut in his wage. He may regain his original wages by obtaining a rise of how much %?

A sum of money is to be divided among four persons in the ratio of 2:3:4:5. Out of the four, one person gets Rs. 200 more than the other and Rs.100 less than another. What is the sum?