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
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 ....
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.
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, ...?
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.
Giúp mình nhé <3
. Câu hỏi :
Hỏi đứa trẻ lớn nhất hơn đứa trẻ nhỏ nhất bao nhiêu tuổi .
25 - 17 = 8 ( tuổi )
đ/s : 8 tuổi
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?
HELLO MY NAME IS TRUNG TODAY I HAVE ONE MATHS FOR EVERYONE THE MATHS IS : ONE DAY ONE MAN ASKED ANOTHERMAN MR.1 :my family have four people me wife me and two son. the total age 2 brother is 40 years old 4 years ago my age is 5 times your age and four time my age is the same as my mother my age is half the sum of 2 times his age and mother age.please calculate the total age of the family.
làm toán thông qua tiếng anh đó bạn
There are three numbers such that the second is four times the first, the third is 3 less than the first. The sum of the first and the third numbers is 27. What is the average of three numbers?
The first number is: (27+3) : 2= 15
The third number is: 27- 15=12
The second number is:15x4=60
Average of three numbers is: (15+12+60):3=29
Answer:29
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
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)
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