Related Questions

At Lions High school 100 students are taking chemistry and 80 students are taking Biology. If 20 students are taking both chemistry and Biology , what is the ratio of the students taking only chemistry to the number taking only Biology?
Select the correct answer choice of the following Question : "At Lions High School 100 students are taking Chemistry and 80 students are taking Biology. If 20 students are taking both Chemistry and Biology, what is the ratio of the students taking only Chemistry to the number taking only Biology?
Four subjects ---physics, Chemistry, Mathematics and Biology ---were taught in four consecutive periods of one hour each starting from 8.00 a.m. At what time was the chemistry period scheduled? 1. Mathematics period ended at 10.00 a.m, which was preceded by Biology. 2. Physics was scheduled in the last period. 3. Mathematics period was immediately followed by Chemistry.
The total number obtained by a student in Physics, Chemistry and Mathematics together is 120 more than the marks obtained by him in Chemistry. What is the average mark obtained by him in Physics and Mathematics together?
who among the following is a world famous chemist ?
Who among the following is a world famous chemist?
Who among the following is a world famous chemist/
Mr. Sarwar is a noted chemist ___________.
Mr. Roberts is a noted chemist------
A chemist was preparing a solution that should have included 35 milligrams of chemical . If she actually used 36.4 milligrams,what was her percentage error ( to the nearest 0.01)?