7th grade math teachers answer book

Question: From 12 books, in how many ways can 5 be chosen i. to surely include a particular book ii. never to include a particular book iii. to have no restrictions at all? Answer: i. To include a particular book, one particular boo..

Question: For the post of 5 teachers, there are 23 applicants. 2 posts are reserved for S.C. candidates and there are 7 S.C. candidates among applicants. In how many ways can the selection be made? Answer: There are 23 applicants. Among this, 7 ar..

The given tally chart shows the numbers of parents who attended the parent-teachers meeting conducted in a school each month. Choose the appropriate label for the left side of the graph. => Number of drinks sold or Number of vegetables sold or Number of books or Number of parent..

There are 6 teachers for every 240 students in a school. Identify the ratio of students to teachers in three ways. => 1 : 40, 1 to 40, and 1 40 or 41 : 1, 41 to 1, and 41 1 or 40 : 1, 40 to 1, and 40 1 or 42 : 1, 42 to 1, and 42 1..

A school has 15 teachers out of which 9 are male. A team of 9 teachers is to be formed with 5 female teachers. In how many ways can the team be formed? => 776 or 746 or 756 or 766..

The scatter plot shows the number of teachers hired each year from 1980 through 1984. How many more teachers were hired in the year 1983 than those in 1984? => 10 or 5 or 15 or 20..

There are 5 teachers for every 20 students in a class. Which one of these represents the ratio of students to teachers? => 1 : 2 or 1 : 4 or 2 : 1 or 4 : 1..

The bar graph shows the price of books on different subjects in a book store. Find the price range of books in the book store. => 4 or 3 or 5 or 2..

Which is the best estimate of the length of a book? => 25 m or 25 km or 25 mm or 25 cm..

There are 3 math teachers in school H1, 4 math teachers in school H2, 2 math teachers in school H3, and 6 math teachers in school H4. Identify the line plot that displays the data. => Line Plot 3 or Line Plot 1 or Line ..