Câu trong ảnh làm như nào các bạn ơi... ThNTH 517 Nguyễn Ngọc Gia,I. CHOOSE THE BEST ANSWER Hãn,Q 1: The value of $12\frac16dm^3=...~m^3$ is,A.12,25 B. 12,4 C. 0,1225 D. 0,01225,Q 2: Find the natural number x that $220,1,Q 4: 100 people attend the conference, 83 people can speak English, 75 people can speak Russian, and,10 people can speak neither English nor Russian. How many people can speak both English and,Russian?,A. 68 people B. 75 people C. 83 people D. 90 people,Q 5: Choose the digits 5, 2, 9, 0, 6, 1 to write the smallest 4-digit,,natural number that is divisible by 2, 5 and 9. The number is:,A.1260 B. 1620 C. 1026 D. 9621,Q 6: The three scales below are in balanced. The weight of the,watermelon is:,A. 200g B. 1kg C. 1800g D. 2kg,Q 7: A store sells a product for 132 000 VND, that means it will earn a profit,of 20% compare to the original price. If the store sells the product for,121,000 VND, how much profit will it make from the original price?,A.11% B. 10% C. 12% D. 9%,Q 8: Find a four-digit number ending in 5. If we move that digit 5 from the last to the beginning of that,number, we have the new number that is 522 units less than the original number. The iniual number is:,A.5175 B. 6135 C. 7135 D. 8315,Q 9: Value of $A=(1+\frac23)x(1+\frac25)x(1+\frac27)x...x(1+\frac2{2023})is$,$A.~A=2023$ $B.~A=675$ $C.~A=2025$ $D.~A=676$,Q 10: Write a group of letters consecutively THANHPHOVUNGTAU into a line,THANHPHOVUNGTAUTHANHPHOVUNGTAUTHANHPHOVUNGTAU..,What is the $2022^{th}$ letter of the sequence?,A. T B. N C. G D. V,Q 11: Look at the two groups of pictures. Choose the correct answer for the blank.,

Question

Câu trong ảnh làm như nào các bạn ơi... ThNTH 517 Nguyễn Ngọc Gia,I. CHOOSE THE BEST ANSWER Hãn,Q 1: The value of $12\frac16dm^3=...~m^3$ is,A.12,25 B. 12,4 C. 0,1225 D. 0,01225,Q 2: Find the natural number x that $220,1,Q 4: 100 people attend the conference, 83 people can speak English, 75 people can speak Russian, and,10 people can speak neither English nor Russian. How many people can speak both English and,Russian?,A. 68 people B. 75 people C. 83 people D. 90 people,Q 5: Choose the digits 5, 2, 9, 0, 6, 1 to write the smallest 4-digit,

,natural number that is divisible by 2, 5 and 9. The number is:,A.1260 B. 1620 C. 1026 D. 9621,Q 6: The three scales below are in balanced. The weight of the,watermelon is:,A. 200g B. 1kg C. 1800g D. 2kg,Q 7: A store sells a product for 132 000 VND, that means it will earn a profit,of 20% compare to the original price. If the store sells the product for,121,000 VND, how much profit will it make from the original price?,A.11% B. 10% C. 12% D. 9%,Q 8: Find a four-digit number ending in 5. If we move that digit 5 from the last to the beginning of that,number, we have the new number that is 522 units less than the original number. The iniual number is:,A.5175 B. 6135 C. 7135 D. 8315,Q 9: Value of $A=(1+\frac23)x(1+\frac25)x(1+\frac27)x...x(1+\frac2{2023})is$,$A.~A=2023$ $B.~A=675$ $C.~A=2025$ $D.~A=676$,Q 10: Write a group of letters consecutively THANHPHOVUNGTAU into a line,THANHPHOVUNGTAUTHANHPHOVUNGTAUTHANHPHOVUNGTAU..,What is the $2022^{th}$ letter of the sequence?,A. T B. N C. G D. V,Q 11: Look at the two groups of pictures. Choose the correct answer for the blank.,

Accepted Answer

Câu 2:

$\displaystyle \begin{array}{{>{\displaystyle}l}}
220,1< x+x+x+x< 225,2\
\Rightarrow 220,1< 4 imes x< 225,2\
\Rightarrow 220,1:4< x< 225,2:4\
\Rightarrow 55,025< x< 56,3\
Vì\ x\ là\ số\ nguyên\Rightarrow x=56
\end{array}$

Chọn B

Câu 9

$\displaystyle \begin{array}{{>{\displaystyle}l}}
A=\left( 1+\frac{2}{3} ight) imes \left( 1+\frac{2}{5} ight) imes ... imes \left( 1+\frac{2}{2023} ight)\
=\frac{1 imes 3+2}{3} imes \frac{1 imes 5+2}{5} imes ... imes \frac{1 imes 2023+2}{2023}\
=\frac{5}{3} imes \frac{7}{5} imes ...\frac{2025}{2023} =\frac{5 imes 7 imes 9 imes ... imes 2023 imes 2025}{3 imes 5 imes 7 imes ... imes 2023}\
=\frac{2025}{3} =675
\end{array}$

Chọn B