Rakunan High School Attached Junior High School Past Paper
arithmetic
Consider a three-digit (digit) integer that can be arranged by selecting three cards from the six cards [1], [2], [3], [4], [5], and [6].
A is a set of integers made by arranging cards in ascending order of written numbers, such as 136 and 235, and B is a set of integers made by arranging cards in descending order of written numbers, such as 542 and 631. will do. At this time, answer the following questions.
(1) How many integers does A have in total?
(2) How much does it cost to add all the integers in A and B?
(3) How much does it cost to add all the integers that are not included in either A or B?
Arithmetic answer
(1) 20 pieces
(2) 15540 pieces
(3) 31080 pieces
<Explanation>
(1) A has a total of (6 x 5 x 4) ÷ (3 x 2 x 1) = 20 pieces
(2) 20 B
777 x 20 = 15540
(3) When selecting 3 out of the given 6 cards to make an integer
6 x 5 x 4 = 120 pieces
(1 + 2 + 3 + 4 + 5 + 6) / 6
(1 + 6) / 2 = 7/2
7/2 x (100 + 10 + 1) x 120 = 46620
46620-15540
= 31080
Science
Miscanthus sinensis is an anemophily in which pollen is carried by the wind and pollinated.
Select two anemophiles from the following a to ka and answer with a symbol.
ah. Tsurureishi
I. Sugi
hare. Primrose. Impatiens
E. Dandelions
power. Ginkgo
Science answer
I. power.
national language
"Silhouette," "news," and "relaxation" are loanwords that mean "shadow play," "reporting," and "relaxing," respectively. For each of the following 1 to 3, complete the loan word by supplementing □ so that it has a later meaning.
1 □□□t = Courtesy and manners
2 □□□ Use = Planning / Development
3 □□□□ x = climax / apex
Japanese answer
1 Echike [t]
2 Produce
3 Climber [X]
society
Japan had a policy of seclusion until the middle of the 19th century. Please select one of the following a to o that is wrong as an event that occurred during the period of seclusion, and answer with a symbol.
A. Issued an order to dispose of foreign ships.
B. Mamiya Rinzō discovered the Strait of Tartary.
C. He punished Takano Choei and others who broke the policy of the Shogunate.
Deported Esiebolt.
A combined fleet of four countries bombarded Shimonoseki.