7. The two pie-charts given below show the data of total students and only girls registered in different streams in a university. If the total number of students registered in the university is 5000, and the total number of the registered girls is 1500; then, the ratio of boys enrolled in Arts to the girls enrolled in Management is Percentage of students enrolled in different streams in a University Percentage of girls enrolled in different streams Engineering 20% Arts 20% Management 15% Engineering 10% Arts 30% Management 15% Science Science 20% Commerce 20% 25% Commerce 15% (A) 2:1 (B) 22:9 (C) 9:22 (D) 11:9 8. It was estimated that 52 men can complete a strip in a newly constructed highway connecting cities P and Q in 10 days. Due to an emergency, 12 men were sent to another project. How many number of days, more than the original estimate, will be required to complete the strip? (A) 3 days (B) 13 days (C) 10 days (D) 5 days 10. An engineer measures THREE quantities X, Y and Z in an experiment. She finds that they follow a relationship that is represented in the figure below: (the product of X and Y linearly varies with Z) Appris (X,Y) GA Then, which of the following statements is FALSE? (A) For fixed X; Z is proportional to Y (C) XY/Z is constant Z (B) For fixed Y; X is proportional to Z (D) For fixed Z; X is proportional to Y