there are four kids.If we compute the total ages of three of them at a time, the sums are 22,20,17,25 respectively. What is the difference in age between the oldest and the youngest among is four kids.
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there are four kids .if we compute the total ages of three of them the sums are 22,20,17,25 respectively. what is the difference in age between the oldest and the youngest among these four kids?
Có lẽ là 17.
Lý do :
Thấy : \(22=2.11\) \(\notin P\)
\(20=2^2.5\notin P\)
\(17\in P\)
\(25=5^2\notin P\)
Do đó ....
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The sum of age of 4 kids is :
\(\frac{22+20+17+25}{3}=\frac{84}{3}=28\)
So, the ages of 4 kids are \(6;8;11;3\)
Mình không rõ yêu cầu của đề lắm :) Mình chỉ có thể tìm tuổi mỗi người.
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there are four kids .if we compute the total ages of three of them the sums are 22,20,17,25 respectively. what is the difference in age between the oldest and the youngest among these four kids?
What is the next number in the pattern: 1, 8, 27, ...?
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Giải nhanh giúp mình nhé:
There are four kids.If we computer the total ages of three of them at a time, a sums are 21, 24, 30 and 27 respectively. What is the difference in age between the oldest and the youngest among there four kids?
there are four kids .if we compute the total age of three of them at a time ,the sum are 22,20,17,25.what is the different of age between the oldest and the youngest among these four kids
The oldest than the smallest age is:
25 - 17= 8 (years old)
Answer: 8 years old
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Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage from 9 to 13Every child in Great Britain between the age of five and fifteen must (9) ______ school. There (10) ______ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.State schools are free, and attendance is compulsory. Morning school begins at nine o’clock and lasts until half past four. School is open five days a week.(11) ______ S...
Đọc tiếp
Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage from 9 to 13
Every child in Great Britain between the age of five and fifteen must (9) ______ school. There (10) ______ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.
State schools are free, and attendance is compulsory. Morning school begins at nine o’clock and lasts until half past four. School is open five days a week.
(11) ______ Saturdays and Sundays there are no lessons. There are holidays at Christmas, Easter and in summer. In London as in all cities there are two grades of state schools for those (12) ______ will go to work at fifteen: primary schools for boys and girls between the ages of five and eleven, and secondary schools for children from eleven to fifteen years.
The lessons are reading, writing, the English language, English literature, English history, geography, (13) ______, nature study, drawing, painting, singing, woodwork and drill.
Điền ô số 9
A. attend
B. come
C. arrive
D. go
Đáp án A
“attend”: tham dự, tham gia
Mỗi đứa trẻ ở Anh trong độ tuổi từ năm đến mười lăm phải đi học
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Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage from 9 to 13Every child in Great Britain between the age of five and fifteen must (9) ______ school. There (10) ______ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.State schools are free, and attendance is compulsory. Morning school begins at nine o’clock and lasts until half past four. School is open five days a week.(11) ______ S...
Đọc tiếp
Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage from 9 to 13
Every child in Great Britain between the age of five and fifteen must (9) ______ school. There (10) ______ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.
State schools are free, and attendance is compulsory. Morning school begins at nine o’clock and lasts until half past four. School is open five days a week.
(11) ______ Saturdays and Sundays there are no lessons. There are holidays at Christmas, Easter and in summer. In London as in all cities there are two grades of state schools for those (12) ______ will go to work at fifteen: primary schools for boys and girls between the ages of five and eleven, and secondary schools for children from eleven to fifteen years.
The lessons are reading, writing, the English language, English literature, English history, geography, (13) ______, nature study, drawing, painting, singing, woodwork and drill.
Điền ô số 12
A. when
B. where
C. which
D. who
Đáp án D
Ở đây mệnh đề quan hệ cần dùng là who (thay thế cho those – người)
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Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage from 9 to 13Every child in Great Britain between the age of five and fifteen must (9) ______ school. There (10) ______ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.State schools are free, and attendance is compulsory. Morning school begins at nine o’clock and lasts until half past four. School is open five days a week.(11) ______ S...
Đọc tiếp
Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage from 9 to 13
Every child in Great Britain between the age of five and fifteen must (9) ______ school. There (10) ______ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.
State schools are free, and attendance is compulsory. Morning school begins at nine o’clock and lasts until half past four. School is open five days a week.
(11) ______ Saturdays and Sundays there are no lessons. There are holidays at Christmas, Easter and in summer. In London as in all cities there are two grades of state schools for those (12) ______ will go to work at fifteen: primary schools for boys and girls between the ages of five and eleven, and secondary schools for children from eleven to fifteen years.
The lessons are reading, writing, the English language, English literature, English history, geography, (13) ______, nature study, drawing, painting, singing, woodwork and drill.
Điền ô số 13
A. scientist
B. scientifically
C. science
D. scientific
Đáp án C
Science: môn Khoa học
Ở đây liệt kê hàng loạt các môn học, cho nên ở chỗ trống cũng phải là một môn học
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Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage from 9 to 13Every child in Great Britain between the age of five and fifteen must (9) ______ school. There (10) ______ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.State schools are free, and attendance is compulsory. Morning school begins at nine o’clock and lasts until half past four. School is open five days a week.(11) ______ S...
Đọc tiếp
Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage from 9 to 13
Every child in Great Britain between the age of five and fifteen must (9) ______ school. There (10) ______ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.
State schools are free, and attendance is compulsory. Morning school begins at nine o’clock and lasts until half past four. School is open five days a week.
(11) ______ Saturdays and Sundays there are no lessons. There are holidays at Christmas, Easter and in summer. In London as in all cities there are two grades of state schools for those (12) ______ will go to work at fifteen: primary schools for boys and girls between the ages of five and eleven, and secondary schools for children from eleven to fifteen years.
The lessons are reading, writing, the English language, English literature, English history, geography, (13) ______, nature study, drawing, painting, singing, woodwork and drill.
Điền ô số 10
A. have
B. has
C. are
D. is
Đáp án C
Danh từ phía sau là types (số nhiều) nên ở đây dùng there are
There are three main types of educational institutions : Có ba loại cơ sở giáo dục chính
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Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage from 9 to 13Every child in Great Britain between the age of five and fifteen must (9) ______ school. There (10) ______ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.State schools are free, and attendance is compulsory. Morning school begins at nine o’clock and lasts until half past four. School is open five days a week.(11) ______ S...
Đọc tiếp
Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage from 9 to 13
Every child in Great Britain between the age of five and fifteen must (9) ______ school. There (10) ______ three main types of educational institutions: primary (elementary) schools, secondary schools and universities.
State schools are free, and attendance is compulsory. Morning school begins at nine o’clock and lasts until half past four. School is open five days a week.
(11) ______ Saturdays and Sundays there are no lessons. There are holidays at Christmas, Easter and in summer. In London as in all cities there are two grades of state schools for those (12) ______ will go to work at fifteen: primary schools for boys and girls between the ages of five and eleven, and secondary schools for children from eleven to fifteen years.
The lessons are reading, writing, the English language, English literature, English history, geography, (13) ______, nature study, drawing, painting, singing, woodwork and drill.
Điền ô số 11
A. On
B. At
C. For
D. In
Đáp án A
Giới từ phía trước ngày là on
Vào thứ Bảy và Chủ Nhật không có tiết học.
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