Question
A candidate who gets 25% marks fails by 12 marks but
another candidate who gets 45% marks gets 10% more than the passing marks. Find the maximum marks.Solution
Passing % = 45% - 10% = 35% Let the maximum marks be x. According to question, => 35% of x – 25% of x = 12 => 10% of x = 12 => x = 120
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 55 and ratio of the 4th and the 5th number is 2:3. If difference between t...
The overall average score of a group of students is 70. The boys have an average of 60 and the girls average 85. By what percentage is the number of boy...
The average weight of 25 employees in an office increases by 0.8 kg when the weight of the manager is included. If earlier the average weight of the emp...
- The number of students in class 'A' is 144, and the ratio of the number of girls to boys in class 'A' is 5:7. If the average number of boys in classes 'A' ...
In a class of 30 students, the average age each student of the class is 21 years. 4 more students join the class such that the average age of the class ...
The average age of A and B is 15 years. If A is to be replaced by C, the average would be 14 years. The average age of C and A is 16 years. Find the age...
The average age of a group of 20 students is 30 years. Two persons of age 40 years and 35 years, left the group and 2 persons of age 50 years and 65 yea...
The average age of A and B is 22 years. If A is to be replaced by C, the average would be 20 years. The average age of C and A is 23 years. Find the age...
The average value of the property of Karan, Arjun, and Vikas is Rs. 78 lacs. The value of the property of Karan is Rs. 25 lacs less than the value of th...
The average age of A and B is 16 years. If A is to be replaced by C, the average would be 15 years. The average age of C and A is 17 years. Find the age...