Related Questions

In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is two-third of the number of students of 8 years of age which is 48. what is the total number of students in the school?
A 72
B 60
C 80
D 100
Among four students sitting in a row, average age of last three students is 20 years and the average age of first three students is 21 years. If the age of first student is 26 years, then what is the age (in years) of the last student?
A 23
B 37
C 24
D 29
Two different schools, A and B, have the same number of students. The ratio of the boys in school A and the boys in school B is 2:1 and the ratio of the girls in school A and the girls in school B is 4:5. What is the ratio of the boys in school A to the girls in school A?
A 1:2
B 2:3
C 3:4
D 4:5
In a class, 20% of the students are below 20 years of age. The number of students above 20 years of age is two-third of the number of students of 20 years of age which is 48. What is the total number of students in the class?
A 72
B 80
C 96
D 100
A brother and sister leave home for school. The brother goes 0.5 km East, then turns right and goes 3.5 km and reaches his school. The sister goes 2.5 km North, then 1 km West, then turns left and goes 6 km and reaches her school. Where is the brother's school with respect to the sister's school?
A 0.5 km East
B 1.5 km West
C 0.5 km West
D 1.5 km East
In a school 25% more student were enrolled in January. But February 20% of the student left and number 0 students remind was 100. what was the original student.
A 105
B 100
C 85
D 80
A school has 10 classes with the same number of students in each class. One day, the weather was bad and many students were absent. 3 classes were half full, 5 class were 3/4 full and 2 classes were 1/6 empty. A total of 74 students were absent. What is the total number of students in this school?
A 200
B 220
C 240
D 246
A school has 10 classes with the same number of students in each class. One day, the weather was bad and many students were absent. 3 classes were half full. 5 classes were 3/4 full and 2 classes were 1/6 empty. A total of 74 students were absent. What is the total number of students in this school?
A 200
B 220
C 240
D 400
A school has 10 classes with the same number of students in each class. One day, the weather was bad and many students were absent. 5 classes were half full, 3 classes were 3/4 full and 2 classes were 1/8 empty. A total of 70 students were absent. What is the total number of students in this school?
A 200
B 220
C 250
D 400
The average age of 12 students is 20 years. If the age of one more student is included, the average decreases by 1, what is the age of the new student ?
A 5
B 7
C 9
D 11

Next steps