50 litres of a mixture of milk and water contains 14 litres more milk than water. 8 litres water is added to it. The ratio of milk to water in the new m...
Two years ago the ratio of annual salary of three friends P, Q and R is 4 : 3 : 5. Every year since then the salary of P, Q and R increases by 10%, 12% ...
The ratio of P’s to Q’s salary is 5 : 7. If Q’s salary is increased by 35%, his total salary becomes Rs. 52,920. What is the salary of P?
If the third proportion of 45 and 60 is “0.5k”, then find the value of (k − 20) : (k + 40).
In a classroom, the ratio of boys to girls is 3:1. The average marks of all the girls are given as z - 6 , while the overall average marks for all the s...
The number of students in class IX and class X is 70 and 75, respectively. The ratio of the number of boys to girls in classes IX and X is 9: 5 and 8: 7...
The cost of diamond varies directly as the square of its weight. A diamond broke into four pieces with weights in the ratio 1 : 3 : 4 : 6. if the loss i...
What is the fourth proportion of 17, 30 and 51?
A sum of money is divided among P, Q, R and S in the ratio of 3:4:8:9 respectively. If the share of R's is Rs. 2600 more than the share of Q, then what ...
What must be added to each term of the ratio 6:13 so that it may equal to 2:3?
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