Question
The total number of students in a school is 20020. If the ratio of boys to the girls in the school is 73:81 respectively, then find the total number of girls in the school.
Solution
Boys: Girls = 73 : 81 Total number of students = 20020 Number of girls = [81/(73+81)] × 20020 = 10530
More Ratio and proportion Questions
- The incomes of A and B are in the ratio 2 : 3 and their expenditures are in the ratio 3 : 5. If A saves Rs 1,000 and B saves Rs 500, find the income of B.
- A and B started a business by investing Rs. 1980 and Rs. 3520 respectively. After 18 months, B withdrew his entire investment. At the end of 20 months from...
- Three numbers are in ratio 3:5:6. If the sum of the squares of those three numbers is 280 then find the sum of the three numbers.
- The sum of three numbers is 324. If the ratio of the first to the second is 4:5 and that of second to the third is 7:9 then the second number is?
- Find the third proportional to 14 and 42?
- Find the third proportional to 12 and 42?
- The ratio of two numbers ‘A’ and ‘B’ is 5:8, respectively. If 15 is added to each of ‘A’ and ‘B’, then the ratio of ‘A’ and ‘B’ becomes 2:3. The sum of ‘A’...
- What must be added to each term of the ratio 5:13 so that it may equal to 2:3?
- Four numbers ‘A’, ‘B’, ‘C’ and ‘D’ are such that ‘A’ is half of ‘B’, ‘C’ is double of ‘A’, and ‘D’ is equal to the average of ‘A’, ‘B’ and ‘C’. If the sum ...
- A total amount is distributed among X, Y, Z and W in the ratio 3:8:10:1. If Z gets Rs. 27000 more than W, find the difference between the shares of X and Y...
Relevant for Exams:
