Related Questions

For every novel in the library there are 2 science books; for each science book there are 7 economics books. Express the ratio of economics books to science books to novels in the library as a triple ratio.
A 7 : 2 : 1
B 7 : 1 : 2
C 14 : 2 : 1
D 14 : 1 : 2
For every novel in the school library there are two science books, for each science book there are seven economice books. Express the ratio of economics books to science books to novels in the school library as a triple ratio.
A 7 : 2 : 1
B 7 : 1 : 2
C 14 : 7 : 2
D 14 : 2 : 1
Ten books are arranged in a row following a certain sequence. Among them 3 are History , 3 are Economics, 2 are Maths and 2 are English. From the left, there is an English book between a History and Maths book, a history book between a Maths and an English book, an Economics book between an English and a Maths Book. a Maths book between two Economics books and two Economics two Economics book between a Maths and a History book. Book of which subject is at the sixth position from the left?
A English
B Economics
C History
D Mathematics
Ten bools are arranged in a row following a certain sequence.Among them 3 History,3 are Economics, 2 are Math's and are English.From the left,There is English book between a History and Math's book, a History book between a Math's and an English book, an Economics book between an English and a Math's Book Math's book between two Economics books and two Economics book between Math's and a History book.Book of which subject is at the sixth position from the left?
A Economics
B English
C History
D Mathematics
Jane, Karim and Leo checked out books from the library. Jane has an even number of library books . Karim has 3 more library books than Jane . Leo has 2 more library books than Karim. Which statement is true about the number of library books Karim and Leo have ?
A Karim's number is odd, and Leo's number is odd.
B Karim's number is odd, and Leo's number is even.
C Karim's number is even, and Leo's number is odd.
D Karim's number is even, and Leo's number is even.
Mr. Bakhtiar works in the procurement department of a library. Under a new purchase policy, he increased the total number of books in the library by 20%. But soon afterwards, as part of the library cleaning process, 10% of the total library book stock is disposed of. What is the net change over the initial number of books in the library ?
A increased of 10%
B increased of 30%
C decreased of 8%
D none of these
The city library donated some books to a class. If each student takes 4 books. there will be 20 books left. If 3 students do not take a book and the rest of the students take 5 books each, there will be no books left. How many books were donated to the class?
A 120
B 140
C 160
D 175
A box in the university bookstore contains books and each book in the box is a History book. an English book or a and one -sixth are English books, what fraction of the books are Science books?
A 1/3
B 2/3
C 1/2
D 3/4
Read the following passage and select the most appropriate answer : Nine books are to be arranged form the left to right on a shelf . Of these , four books are leather -bounds , three are cloth -bounds and remaining books are paperbacks. The leather bound books must be together . The paperback books must also be together. The clothbound books need not to be together . The cloth-bound books must be next to each other , if a paperback book is in which of the following position ?
A the ninth
B the first
C the fifth
D Try your self
A class of 20 students borrowed library books for their research projected. Some of the students borrowed 3 books each, and the rest borrowed 2 books each. If a total of 52 books were borrowed, how many of the students borrowed, how many of the students borrowed 3 books each?
A 8
B 9
C 10
D 12

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