Which tree was the tallest when it was first planted
2 answers:
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Answer:
a) 12
b) 18
c) 37
d) 97
Step-by-step explanation:
Toward the middle of the harvesting season, peaches for canning come in three types, early, late, and extra late, depending on the expected date of ripening. During a certain week, the following data were recorded at a fruit delivery station:
34 trucks went out carrying early peaches ;
61 carried late peaches ;
50 carried extra late;
25 carried early and late;
30 carried late and extra late;
8 carried early and extra late;
6 carried all three;
9 carried only figs (no peaches at all) .
<u>To solve this problem, the best solution is to drawn a Venn Diagram, which is attached.</u>
(a) How many trucks carried only late variety peaches?
12
(b) How many carried only extra late?
18
(c) How many carried only one type of peach ?
7+12+18 = 37
(d) How many trucks (in all) went out during the week?
Sum of all the numbers on the Diagram:
7+2+6+19+12+24+18+9= 97
Answer:
(Answer in attachment, explanation below)
Step-by-step explanation:
The answer is B. 5P5 x 20P15.
This is because to make the second grade students to sit in the first row we have 5 seats and 5 students so we will permute the 5 students to those 5 seats. So 5P5.
Now we are left with 20 seats and 15 first grade students so we can simply permute those 15 students into those 20 seats. So 20P15.
Finally using the counting rule principle we will multiply both of these so 5P5 x 20P15.
No. of students from first grade = 15
No. of students from second grade = 5
There are 5 rows of seats
Each row contains 5 seats
Total seats = 25
No. of ways for second-grade students occupy the first row(i.e first 5 seats) =
Remaining seats = 20
No. of students from first grade = 15
So, No. of ways for first-grade students occupy remaining seats =
So, No. of ways for the students can be seated if all of the second-grade students occupy the first row =
So, Option B is true
Hence No. of ways for the students can be seated if all of the second-grade students occupy the first row is
